Yq replace value in file.
I am using yq to update helm chart yaml files.
Yq replace value in file a comma using Mike Farah's yq (v4. But how do i do it using yq v4's eval command. ) for How to change a value in yaml file with a bash command? 0. yq w -i xxx. 4" - type: On my Mac I have yq and I want to change the following YAML file: --- - type: replace path: /mypath1 value: - "10. yml with above contents. To replace environment variables across all values in a document, envsubst can be used with the recursive descent operator as follows: Copy The env variable can be any valid yq expression. 1 (e. stuff = "foo"' myfile. 2 on Apple Silicon architecture)? Warning. which adds a new a. So your command results in. Follow edited Mar 7, 2022 at 18:09. Improve this answer. []. If there is/are more than one string value: with the regexp in that file. [config. json Available file contents example: animals: - bird - frog - leopard I want to be able to replace the list of animals. patch = "- op: replace path: /spec/rules/0/host value: chetantalwar. Note that you can use string operators like + and sub to modify the value in the yaml file to a path that exists in your system. yaml To properly insert (not inject) a shell variable's value into a YAML document using Mike Farah's yq utility, you use env() to read the variable's value from the environment: yq is a command-line tool designed to transform YAML. I have the following script which loops through to update the routes as necessary when the id's match: Using yq your task can be solved easily. Use yq to substitute string in a yaml file. Then, I would like to replace 'Image' and 'ImageTag' with some another value(say 'teststring','latest2' resp. The question asks for a solution using a YAML-unaware tool. We will use the following yaml files to illustrate finding and updating the deeply nested ‘tags’ element. targetRevison's based on a input list to an input variable: replace_list=[argocd,argocd-projects] replace_to_value=v1. For instance, I may want to change from: ingress: hosts: [ ] to: ingress: hosts: - ho With Mike Farah's yq, you can get the value of the nodename shell variable into your yq expression as part of a path by accessing it from the utility's environment using the strenv() function, like so: $ nodename='sub_node' yq '. yaml # This is a file store - file-store: version: 2 enabled: no - file-store2: version: 4 enabled: yes Is there a way to e Like the jq equivalents, variables are sometimes required for the more complex expressions (or swapping values between fields). After running the command, when you look at the file: YAML files generally have array values. xml file of: Copy How to replace 'Image', 'ImageTag' for Backendapp through Bash? Edit: say file name is test. healthcheck)' docker-compose. tag" key . b entry, which is not desired. The -Y option is incompatible with jq filters that do not expect the extra information injected into the document to preserve the YAML formatting. patches[0]. And then only the child entries at that: Have a file sample. I'm storing the output of a certain command in a variable, and want to use the value of said variable to update a specific property and save my _config. spec. "/image-content" expression refers to "any /image-content section just beneath the top level". To make the change in-place, use yq with its --in-place or -i option. yq w config. yaml file with a json object within that I need to change a value during YQ task run in pipeline. b c yq w -i xxx. grocery. A preferred solution would be: "update image. So although you could do: with open For what you want. Commented Nov 15, 2022 at 14:24. contact[]. jq '(. You must learn to work on array values. 1. 0 city: Madrid how can I replace city to any other value using yq ? This uses Golang's native regex functions under the hood - See their for the supported syntax. Install yq Here are the steps for installing the latest yq on Snap enabled systems yq: replace section of one yaml file with content section of another I wish I could use yq to iterate a yaml recursively, find all key-value pairs, whose key is image and value type is string(!!str), then add a prefix to the original value. fruits. 6. Preserve quotes with yq. 221' export virtualIP2='10. ; In version 2 the parameter imageNo is calculated within the script from the current number of images. image |= "test"' . saveTo !ORIGINALINPUT yaml read spec saveTo !SAVED useAsInput !ORIGINALINPUT yaml delete 'spec/*' yaml insert spec @/tmp/HugeSelectorFile. 57264. Edit: as pointed out by Ranvijay Sachan sed can check if a pattern is there and replace the following line. yaml But doing the same using yq using in-place edit would look like: yq -i -y '. How to Find and Replace using YQ in Shell script / Yaml? 1. yaml. b = 10' then the output contains only the entries that matched the select, not the complete contents. yq syntax to append a modified array element to a YAML file. How to Add/Delete/Array in YAML File using yq. This means that both variables have to be exported or, in some other way, made available to the yq process' environment. In most shells (including bash) wrapping stuff over double quotes preserves the literal value of the string (except embedded Updates all the matching nodes of path expression in a yaml file to the supplied value. yml | jq '. yml file of: Copy a: b: - name: dog - name: cat. After running the command, when you look at the file: fruits: apple: verdant pear: green banana: yellow. value' - value1 Now that we have the correct read query, it is easier to figure out the write query. yml. yml should look like: It then updates the alsa_device_name value under the selected elements' parameters key. [0]. The yq command is a powerful, lightweight, and highly portable command-line tool designed to parse, manipulate, and transform YAML files. A "Change Request", maybe. All values are assumed to be strings when parsing XML, but you can use the from_yaml operator on all the strings values to autoparse into the correct type. This can be leverage here to update both field in a single command. I have a Yaml file as below and would like to replace "cups-stage-service" with "cups-stage-blue-service". Update property of specific item in array using yq 4. Originally posted by nicodmt April 9, 2024 Hi, I have a config. Basic. 2) and so yq will automatically add the !!merge tag to these nodes as it is effectively a custom tag. Indeed, the precise format of the YAML file doesn't really matter, so long as the right keys and sequences and mappings are there with the right structure. 31. I am a bit new using yq and unsure if I am going overboard using the tool. loadBalancerIP= env(LB_IP)' manifest. , charts/values. I'm passing the variable via the environment and reading their values with strenv() inside the yq expression. Modifying yaml array in bash. FILE_PATH: Path to file in the repository where the tag should be updated, e. yaml data. Given a sample. yaml How to change a value in yaml file with a bash command? 3. Input: serving: template: image: "docker. yml) with the value of another yaml file (file2. The command I tried: sed -i If you want to change the value, use the "-i" parameter. spec. 7: some version I put there, put your own desired value I have a yml file, from which I am obtaining a key with yq and I am storing it in a variable in bash, I am trying to do another query with the value of the variable but it does not give the expected result 👋 Looking for some guidance on the following scenario. A filter that expects all array entries to be mappings may break due to the presence of string metadata keys. $ yq w file. Using mikefarah/yq, all you need to do it provide the path expression for the key you modifying and set the desired value for it. animals = "rabbit,donkey,horse"' my. Please advise if there is an option to have jq make changes on the file directly (similar to sed -i). I have seen the env-variables-operators articl I am using yq to update helm chart yaml files. yml This updates the value of the enabled key in the client_encryption_options top-level object to false. sed 's/PATTERN/REPLACEMENT/': PATTERN matches something from the source. json. yaml 'spec. releases[] So if the array order were to change at some point this would break. In this article, I will illustrate how to take a block of yaml from one file to populate a specific location in another. _config. 244. 0. Here, version: ^: starts with $: ends with; 5. role ${VALUE} The text was updated successfully, but these errors were encountered: 👍 1 mattixpet reacted with thumbs up emoji You can use the field [+] notation to append fields in yq v3. client_encryption_options. Update specific value in an array of key=value pairs in YAML. value is the query path. Search CtrlK. YAML parsers are much more suited for this. yml # update myfile. If To change the value of a variable in a JSON file, run the command: $ jq '. yml yq -i eval '. Find nested key-value pair in yaml. yq supports merge aliases (like <<: *blah) however this is no longer in the standard yaml spec (1. 4. color yellow and so on. Reload to refresh your session. yq 'select(. The filter with_entries does these conversions under the hood. You signed out in another tab or window. com"' tes. image = "go:latest"' file. 115"' | yq -P r - >newfile. A: a: a1: value1 b: value2 B: b: value3 file2. 3 yq r is the command to read a value from the YAML file. Merging multiple YAML files, but keeping all values in case there are multiple. yq replace value in manifest yaml. Let’s work on Kubernetes files. command[+]' "c" The above command appends the entry "c" to the array. enabled |= false' file. yaml get_this: This accesses the subsection of the top-level node key given by the value of the Hi, I have a config. txt containing the following lines. 94. "/image-content")' file. The output, given the document in the question: You signed in with another tab or window. apple = "verdant"' -i fruits. yaml yaml insert spec !SAVED Install yq. yml" yq '. yaml TAG : The new image tag that should replace the existing one, e. yaml I used this using CLI and it updated the file, and similarly you The load operators allows you to load in content from another file. This yq is a wrapper around the jq JSON wrapper, and will therefore strip comments from the document. g. Accessing environment variables in a YAML file for Ruby project (using $ Replace value in yaml file using yq. How to replace environment variable value in yaml file to be parsed using python script. tag value from 46 to 51 where set[]. I really appreciate any help with this. Assuming I have the following YAML files: file1. 14. A: a: a1: value2 file3. 1. This yq is a wrapper around the jq JSON wrapper, I would like to replace a single value inside a yaml file (file1. remote_user = "root"' playbook. example production. Updates all the matching nodes of path expression in a yaml file to the supplied value. yaml a. Given a Mike Farah’s yq yaml processor has a a rich set of operators and functions for advanced usage. You switched accounts on another tab or window. This tag tells other yaml parsers that this entry is a merge entry, as opposed to a regular string key that happens to have a value of <<:. 2 Operating system: mac Installed via: homebrew Input Yaml Concise yaml document(s) (as simple as possible to show the bug, please keep it to 10 lines or less) exp You can make use of some yaml processor like yq for this. 115 repository: kafka pullPolicy: Given the following snippet from a yml file, how can I change the value of MAINTENANCE_MODE to true? A solution using mikefarah/yq v4. yml 'data. Commented Feb 10, Replace value in yaml file using yq. yaml example below, the last Replace a list value in yaml with yq. What can it do? Read values from the file. 1 yq e -i '. What if you want to change the value instead? Perhaps you want to deploy to the production environment and change the URL to the production database. | select(. yml)" We like to upgrade to yq 4, however I cannot seem to find the way to do this in yq 4. yml]' -- "$(< config. backend. You can load files of the following supported types: category: fruits somme_dummy_key: value details: - name: banana color: yellow - name : apple color: red In yq version, i know we could do a. Sometimes it's worth going through the apparent pain of that to deliver more reliable software that in turn is easier to support – Chris Davies. # read the "stuff" node from "myfile. b c #!/bin/bash # Read the YAML file and convert it to JSON using 'yq' and 'jq' tools json=$(yq eval '. e f Describe the solution you'd like yq w -i xxx. 2 spec. Thankfully, yq underlying yaml parser still supports that tag - and it's extra nice in that it explicitly puts the !!merge tag on key of the map entry. The call is slightly different depending on the yq implementation used: yq - Python or yq - Go. x. 84. YAML files generally have array values. Using the command based file editor ed I want just to replace a value in a multi . The bash script shows two slighty different versions: In version 1 the three parameters imageNo name and value are passed to yq. In the YAML file The below suggestions work only on yq versions <4. yml '(path==/mypath2). yaml is the file path of the YAML that you want to read. fruits= "banana "' file. name = "node-red") | . . I am trying to replace two values in the yaml file with two envir I am trying to replace the tag value but having no luck with sed Here is the file looks like and i would like to replace the tag value uniquely app1: tag: $ yq -j r file. yaml d. No temporary files are created by this. You must learn To make the change in-place, use yq with its --in-place or -i option. Fine and Replace Array in YAML file with yq. 2' yq -y < config. Let's say it Can't we just replace the corresponding key in the file instead of reading and writing complete writes data structure to an in memory file-object (like StringIO) and after writing returns the value as string. via homebrew brew install yq), define your variables and let yq do the replacement: Of course you can use a fileset instead of file in case you want to change values dynamically for multiple files (nested or whatever) Your template file xyz. name, . yaml file with yq and leaving the rest of the document intact. ipAddress: 192. 104. 4" - type: replace path $ yq r file. yml In similar manner, you could also remove task from Ansible Playbook. Speaking of which - how about changing remote_user in all tasks in an Ansible Playbook - here, let's change it to root: yq eval '. <<:has actually been removed in the 1. Replace value in yaml file using yq. e f a. key3 my_new_value Describe the bug dont see docs on how to change value Version of yq: 4. It is much easier to use the jq or yq tools to process structured files. Case insensitive tip: prefix the regex with (?i) - e. But the style operator enables the change of the printing style into other 5 formats, double Getting Started with yq Usage: yq [flags] yq [command] Examples: # yq defaults to 'eval' command if no command is specified. env[0]. v3. yq. Modified 1 year, 8 months ago. key1 | . \1: is the content of the text in parentheses in the PATTERN. containers[0]. replace a value in yaml using yq and sed. yml Closing Thoughts I have the following yaml file called file. I know it's late but this can help if you want to pass the value from a variable. yq write [yaml_file] [path_expression] [value] [flags] You were right in identifying the path_expression, but just didn't include the right quotes to wrap the replacement text. The key inside both file: ' file. The simplicity and flexibility offered by yq cater to developers and system administrators who deal with YAML configurations, making it an indispensable tool for those frequently working with data in a structured format. name==image (This would be equivalent to using helm install -f with multiple local values files, rather than helm install --set individual values. yml in place yq -i '. Currently I am trying to update a value in Github CI with YQ for my deployment on digital ocean app platform. yml '(. File: apiVersion: apps/v1 kind: Deployment metadata: labels: app: <SOME_NAME> name: <SOME_NAME> namespace: How to change a value in yaml file with a bash command? 0. 168. The output, if changing the given document like shown above, would be yq -y '. action == "want-to-update"). But as suggested already use the proper tool for parsing/editing yaml file. You can use the following My goal is to update the route in the first file with the value of the route in the second file. yq eval -i 'del(. Copy-h, --help help for eval-C, --colors force print with colors-e, --exit-status set exit status if there are no matches or null or false is returned-I, --indent int sets indent level for output (default 2)-i, --inplace update the yaml file inplace of first yaml file given. keyword = input' file newdata The output, given the data in the question: not_keyword: 'something' keyword: 'condition 1 condition 2 condition 3' another_not_keyword: 'something' Replace values in yml file with Shell variable. template. yml app1: tag: dev-0. Related. key2 = new_value' file. Given a list in YAML, I want to dynamically replace all values of source. test("(?i)cats)". Hot Network Questions Does a positive outcome for the victim of a crime give the perpetrator a defense? Escape quote marks when doing a commit with VimFugitive yq -y '. io/serving" custom: template: image: type: string description: "" eventing: image: "docker. Generate yq doesnt have string replace (yet) best way you can do it is to extract the value out, pipe it through sed to update it, then write it back using yq. It is a shorthand for to_entries | map(foo) | from_entries (see jq manual). Add new values. yaml --- action: "want-to-update" foo: |- { "a" : "actual A" Tried to update with yq and jq. It's cumbersome but it should work till a replace operator is added In my yaml file I have this persons array (it only has one element always) persons: - name: mario version: 1. For that I want to make both the pattern and the replacement value variable. web: environment: - DEBUG=1 yq replace a value with another value of a map. Ask Question Asked 1 year, 8 months ago. Viewed 538 times 0 . = "new value". Hot Network Questions Best numerical scheme for solving an equation with several variables How to find the real net force on an object observed from two frames seeing each other to be accelerated? I have a . json" object and the task creates a new field at the end (see config. app1. I want to build a pipeline function that replaces a value in a yaml file. Update value in yaml using yq and returning the whole yaml content. HA_PGPOOL_VIRTUAL yq w temp. json as idiomatic YAML yq -P sample. yml $ cat newfile. a | select(has("b")) | . For example, here's my file: apiVersion: v2 name: my-chart versi @HutgerHauer If the new value is based on the old one, you need the update assignment operator |= (as we do with sub). Install the YAML processor yq (e. I tried with yq -i '. yml file right after. Update Existing values. yml # print contents of sample. Now if I want to write more than one value, I need to call yq multiple times. The trick is to convert the object into an array, apply the selection to the array elements and then convert it back into an object. yq w <yaml_file> <path_expression> <new value> See docs for and for more details, including controlling quotes and tags. yaml details. Copy How can I use yq to replace the value: <base64_string> with it's decoded value? The desired output would be: - id: 1. REPLACEMENT is what you now want to appear in the modified content. name = "go:dev"' file. yml yq query result can also be piped into each other. It is similar to jq which focuses on transforming JSON instead of YAML. sed to edit yaml file with individual values to each key. yq e '. In mikefarah/yq the write syntax takes the form. yaml file in Python using Pyyaml or Ruamel. 0 yq In yq 3 it's possible to update a multiline value like: yq w -i configmap. sudo snap install yq yq --version Sample yaml. Editing a . Our document looks like: Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company The merge functionality from yaml v1. Ask Question Asked 5 years, 2 months How can I make the shell script replace all vIP1 values with virtualIP1 and vIP2 with virtualIP2 in shell script export virtualIP1='10. #!/bin/bash FILE=' some: fields: "value" images: image_1: name: "some-name" value: This is by no way as reliable as yq but you can use this awk if your yaml file structure is same as how it is shown in question: Replacing Values in Yaml file using Sed cmd. yml sed will replace em all. app2. The recent versions have a much improved DSL, like that of jq. 6. yml The . yaml file I want to update with Python code. Note that there is also an additional ref operator that holds a reference (instead of a copy) of the path, allowing you to make multiple changes to the same path. A: a: a1: value3 How can I merge them, but either have a key in it multiple times or have the values separates by e. If I try use a filter such as yq eval '. ) releases I have a helm dependencies chart that I'm willing to programmatically search and replace a specific Chart name with a given version. 4. update yaml array using yq. /test. io/eventing" If you want to change the value, use the "-i" parameter. If the document in the question is partial and does not show its true structure (the extra two spaces of indentation implies that what we're seeing are sections on a secondary level), then you may need to use. pod. yq -y 'del(. then. In this example, we have set a new value for the Use the [+] operator to append new value to an existing array. If not (when just setting a value unrelated to the old one), the assignment operator = suffices, e. apiVersion: While this command makes the needed change, it outputs the entire json on the terminal and does not make change to the file itself. Or if you want to update the whole array command you could do in v4. Since the file is specifically a YAML file, would yq (a wrapper around jq) it sets the value after the : to your new desired one and sets the respective flag so that any further occurrences of these keywords are disregarded To make the change in the original file, just add -i: sed -i -Ez 's/(username:)[^\n]*/\1toto/; s I have the following map of strings and I would like to change the value of "image. value[+]' "value3" - type: replace path: /mypath1 value: - "10. Example: yq -i '. server: application_connectors: - type: http port: 8989 bind_host: localhost request_log: appenders: [] admin_connectors: - type: http port: 8990 bind_host: localhost I am currently working with editing/modifying yml files. 18+ is preferred. For convenience, the yq call was moved into a shell function (we're potentially doing two extremely similar calls to yq, so this seemed reasonable). 3. b c And we run a command: yq w -i xxx. 使用 yq v4 向 YAML 值添加格式 - Add formatting to a YAML value with yq v4 yq 替换值保持 rest 完好无损 - yq replace value keep rest intact 使用 yq 根据条件更新 YAML 下的特定对象值 - Update a specific object value under YAML based on a condition using yq 如何使用 yq 更改嵌套 YAML 记录中的值 - How to Use the alias and anchor operators to read and write yaml aliases and anchors. This doesn’t always give a good result. Sometimes I require that the value assigned is a list or a dict. yaml example below, the last three rows). foo' sample. 1 critical: false value: Reading in another yaml file and using the key: value map to append to the array based on the matched id? – 4x0v7. 0. node[strenv(nodename)]' example. stuff' < myfile. yq doesnt have string replace (yet) best way you can do it is to extract the value out, pipe it through sed to update it, then write it back using yq. yq supports YAML update with the usual pattern yq e -i '. group[]. See the notes at bottom if you need manual installation instead. -M, --no-colors force print with no colors-N, --no-doc Don't print document separators (---)-n, --null-input Don't read yq -i eval '. Some administrators use sed or regular expressions to replace variable values in structured files (JSON or YAML). tag = "dev-0. The explode operator normalises a yaml file (dereference (or expands) aliases and remove anchor names). yaml` with this I am trying to change the bind_host: localhost to bind_host: 0. yq --style double w -i myfile. 3. I want the key "currentVersion" to get it's value updated but for some reason I just can't access the "config. 2. – I am looking for some help with using "yq" to replace / add existing array elements by name. , 1. Create a /tmp/batch-file. I'm giving a solution using yq by Andrey Kislyuk (not Mike Farah's yq), which is YAML-aware: yq -Y '. yml but it just adds it as a value The fix is quite trivial. export LB_IP=1. For example, a jq filter that counts entries in the Instances array will come up with 4 entries instead of 2. services. It's cumbersome but it should I am trying to replace a value for key ipAddress using sed for the below yaml block: id: network-1111 . Note that the first file in reality will have many routes but for demonstration purposes I am only showing the first in this example. See "yq eval --help" for more examples. yml). This yq utility can also do "in-place" edits if given the -i option. 17. 0 where the bind_host is the 3rd layer nested value of YAML file Current value of File. bar_proxy. containers[] | select(. yml Share. I am trying to substitute all substrings in a yaml file with yq. name banana . Here are the steps for installing the latest yq on Snap enabled systems like Ubuntu/Debian. Alternatively, if the file always has this structure, and it's those particular "name" fields you want to change, not just any old name, you can also just list them out and assign to them as a group as well:. /bin/yq write -i file. ## This is a comment. name) |= "XXXX"' This does the same assignment to helm install -f takes any valid YAML file; but every valid JSON file is a valid YAML file, so if your CI tool can write out JSON, it can create a file that can be passed to helm install -f. So the question is how do i replace the value of the image key only when the above key value contains name: node-red i have tried: yq '. Also conditionally? Appreciate your help in this regard. key = "5678"' file. ddwfzpltgpzqininppaluzlurhnqiqszyquyjyndrzdatodjppbfcpambfvqztaytgbxvebm
Yq replace value in file a comma using Mike Farah's yq (v4. But how do i do it using yq v4's eval command. ) for How to change a value in yaml file with a bash command? 0. yq w -i xxx. 4" - type: On my Mac I have yq and I want to change the following YAML file: --- - type: replace path: /mypath1 value: - "10. yml with above contents. To replace environment variables across all values in a document, envsubst can be used with the recursive descent operator as follows: Copy The env variable can be any valid yq expression. 1 (e. stuff = "foo"' myfile. 2 on Apple Silicon architecture)? Warning. which adds a new a. So your command results in. Follow edited Mar 7, 2022 at 18:09. Improve this answer. []. If there is/are more than one string value: with the regexp in that file. [config. json Available file contents example: animals: - bird - frog - leopard I want to be able to replace the list of animals. patch = "- op: replace path: /spec/rules/0/host value: chetantalwar. Note that you can use string operators like + and sub to modify the value in the yaml file to a path that exists in your system. yaml To properly insert (not inject) a shell variable's value into a YAML document using Mike Farah's yq utility, you use env() to read the variable's value from the environment: yq is a command-line tool designed to transform YAML. I have the following script which loops through to update the routes as necessary when the id's match: Using yq your task can be solved easily. Use yq to substitute string in a yaml file. Then, I would like to replace 'Image' and 'ImageTag' with some another value(say 'teststring','latest2' resp. The question asks for a solution using a YAML-unaware tool. We will use the following yaml files to illustrate finding and updating the deeply nested ‘tags’ element. targetRevison's based on a input list to an input variable: replace_list=[argocd,argocd-projects] replace_to_value=v1. For instance, I may want to change from: ingress: hosts: [ ] to: ingress: hosts: - ho With Mike Farah's yq, you can get the value of the nodename shell variable into your yq expression as part of a path by accessing it from the utility's environment using the strenv() function, like so: $ nodename='sub_node' yq '. yaml # This is a file store - file-store: version: 2 enabled: no - file-store2: version: 4 enabled: yes Is there a way to e Like the jq equivalents, variables are sometimes required for the more complex expressions (or swapping values between fields). After running the command, when you look at the file: YAML files generally have array values. xml file of: Copy How to replace 'Image', 'ImageTag' for Backendapp through Bash? Edit: say file name is test. healthcheck)' docker-compose. tag" key . b entry, which is not desired. The -Y option is incompatible with jq filters that do not expect the extra information injected into the document to preserve the YAML formatting. patches[0]. And then only the child entries at that: Have a file sample. I'm storing the output of a certain command in a variable, and want to use the value of said variable to update a specific property and save my _config. spec. "/image-content" expression refers to "any /image-content section just beneath the top level". To make the change in-place, use yq with its --in-place or -i option. yq w config. yaml file with a json object within that I need to change a value during YQ task run in pipeline. b c yq w -i xxx. grocery. A preferred solution would be: "update image. So although you could do: with open For what you want. Commented Nov 15, 2022 at 14:24. contact[]. jq '(. You must learn to work on array values. 1. 0 city: Madrid how can I replace city to any other value using yq ? This uses Golang's native regex functions under the hood - See their for the supported syntax. Install yq Here are the steps for installing the latest yq on Snap enabled systems yq: replace section of one yaml file with content section of another I wish I could use yq to iterate a yaml recursively, find all key-value pairs, whose key is image and value type is string(!!str), then add a prefix to the original value. fruits. 6. Preserve quotes with yq. 221' export virtualIP2='10. ; In version 2 the parameter imageNo is calculated within the script from the current number of images. image |= "test"' . saveTo !ORIGINALINPUT yaml read spec saveTo !SAVED useAsInput !ORIGINALINPUT yaml delete 'spec/*' yaml insert spec @/tmp/HugeSelectorFile. 57264. Edit: as pointed out by Ranvijay Sachan sed can check if a pattern is there and replace the following line. yaml But doing the same using yq using in-place edit would look like: yq -i -y '. How to Find and Replace using YQ in Shell script / Yaml? 1. yaml. b = 10' then the output contains only the entries that matched the select, not the complete contents. yq syntax to append a modified array element to a YAML file. How to Add/Delete/Array in YAML File using yq. This means that both variables have to be exported or, in some other way, made available to the yq process' environment. In most shells (including bash) wrapping stuff over double quotes preserves the literal value of the string (except embedded Updates all the matching nodes of path expression in a yaml file to the supplied value. yml | jq '. yml file of: Copy a: b: - name: dog - name: cat. After running the command, when you look at the file: fruits: apple: verdant pear: green banana: yellow. value' - value1 Now that we have the correct read query, it is easier to figure out the write query. yml. yml should look like: It then updates the alsa_device_name value under the selected elements' parameters key. [0]. The yq command is a powerful, lightweight, and highly portable command-line tool designed to parse, manipulate, and transform YAML files. A "Change Request", maybe. All values are assumed to be strings when parsing XML, but you can use the from_yaml operator on all the strings values to autoparse into the correct type. This can be leverage here to update both field in a single command. I have a Yaml file as below and would like to replace "cups-stage-service" with "cups-stage-blue-service". Update property of specific item in array using yq 4. Originally posted by nicodmt April 9, 2024 Hi, I have a config. Basic. 2) and so yq will automatically add the !!merge tag to these nodes as it is effectively a custom tag. Indeed, the precise format of the YAML file doesn't really matter, so long as the right keys and sequences and mappings are there with the right structure. 31. I am a bit new using yq and unsure if I am going overboard using the tool. loadBalancerIP= env(LB_IP)' manifest. , charts/values. I'm passing the variable via the environment and reading their values with strenv() inside the yq expression. Modifying yaml array in bash. FILE_PATH: Path to file in the repository where the tag should be updated, e. yaml data. Given a sample. yaml How to change a value in yaml file with a bash command? 3. Input: serving: template: image: "docker. yml) with the value of another yaml file (file2. The command I tried: sed -i If you want to change the value, use the "-i" parameter. spec. 7: some version I put there, put your own desired value I have a yml file, from which I am obtaining a key with yq and I am storing it in a variable in bash, I am trying to do another query with the value of the variable but it does not give the expected result 👋 Looking for some guidance on the following scenario. A filter that expects all array entries to be mappings may break due to the presence of string metadata keys. $ yq w file. Using mikefarah/yq, all you need to do it provide the path expression for the key you modifying and set the desired value for it. animals = "rabbit,donkey,horse"' my. Please advise if there is an option to have jq make changes on the file directly (similar to sed -i). I have seen the env-variables-operators articl I am using yq to update helm chart yaml files. yml This updates the value of the enabled key in the client_encryption_options top-level object to false. sed 's/PATTERN/REPLACEMENT/': PATTERN matches something from the source. json. yaml 'spec. releases[] So if the array order were to change at some point this would break. In this article, I will illustrate how to take a block of yaml from one file to populate a specific location in another. _config. 244. 0. Here, version: ^: starts with $: ends with; 5. role ${VALUE} The text was updated successfully, but these errors were encountered: 👍 1 mattixpet reacted with thumbs up emoji You can use the field [+] notation to append fields in yq v3. client_encryption_options. Update specific value in an array of key=value pairs in YAML. value is the query path. Search CtrlK. YAML parsers are much more suited for this. yml # update myfile. If To change the value of a variable in a JSON file, run the command: $ jq '. yml yq -i eval '. Find nested key-value pair in yaml. yq supports merge aliases (like <<: *blah) however this is no longer in the standard yaml spec (1. 4. color yellow and so on. Reload to refresh your session. yq 'select(. The filter with_entries does these conversions under the hood. You signed out in another tab or window. com"' tes. image = "go:latest"' file. 115"' | yq -P r - >newfile. A: a: a1: value1 b: value2 B: b: value3 file2. 3 yq r is the command to read a value from the YAML file. Merging multiple YAML files, but keeping all values in case there are multiple. yq replace value in manifest yaml. Let’s work on Kubernetes files. command[+]' "c" The above command appends the entry "c" to the array. enabled |= false' file. yaml get_this: This accesses the subsection of the top-level node key given by the value of the Hi, I have a config. txt containing the following lines. 94. "/image-content")' file. The output, given the document in the question: You signed in with another tab or window. apple = "verdant"' -i fruits. yaml yaml insert spec !SAVED Install yq. yml" yq '. yaml TAG : The new image tag that should replace the existing one, e. yaml I used this using CLI and it updated the file, and similarly you The load operators allows you to load in content from another file. This yq is a wrapper around the jq JSON wrapper, and will therefore strip comments from the document. g. Accessing environment variables in a YAML file for Ruby project (using $ Replace value in yaml file using yq. How to replace environment variable value in yaml file to be parsed using python script. tag value from 46 to 51 where set[]. I really appreciate any help with this. Assuming I have the following YAML files: file1. 14. A: a: a1: value2 file3. 1. This yq is a wrapper around the jq JSON wrapper, I would like to replace a single value inside a yaml file (file1. remote_user = "root"' playbook. example production. Updates all the matching nodes of path expression in a yaml file to the supplied value. yaml a. Given a Mike Farah’s yq yaml processor has a a rich set of operators and functions for advanced usage. You switched accounts on another tab or window. This tag tells other yaml parsers that this entry is a merge entry, as opposed to a regular string key that happens to have a value of <<:. 2 Operating system: mac Installed via: homebrew Input Yaml Concise yaml document(s) (as simple as possible to show the bug, please keep it to 10 lines or less) exp You can make use of some yaml processor like yq for this. 115 repository: kafka pullPolicy: Given the following snippet from a yml file, how can I change the value of MAINTENANCE_MODE to true? A solution using mikefarah/yq v4. yml 'data. Commented Feb 10, Replace value in yaml file using yq. yaml example below, the last Replace a list value in yaml with yq. What can it do? Read values from the file. 1 yq e -i '. What if you want to change the value instead? Perhaps you want to deploy to the production environment and change the URL to the production database. | select(. yml)" We like to upgrade to yq 4, however I cannot seem to find the way to do this in yq 4. yml]' -- "$(< config. backend. You can load files of the following supported types: category: fruits somme_dummy_key: value details: - name: banana color: yellow - name : apple color: red In yq version, i know we could do a. Sometimes it's worth going through the apparent pain of that to deliver more reliable software that in turn is easier to support – Chris Davies. # read the "stuff" node from "myfile. b c #!/bin/bash # Read the YAML file and convert it to JSON using 'yq' and 'jq' tools json=$(yq eval '. e f Describe the solution you'd like yq w -i xxx. 2 spec. Thankfully, yq underlying yaml parser still supports that tag - and it's extra nice in that it explicitly puts the !!merge tag on key of the map entry. The call is slightly different depending on the yq implementation used: yq - Python or yq - Go. x. 84. YAML files generally have array values. Using the command based file editor ed I want just to replace a value in a multi . The bash script shows two slighty different versions: In version 1 the three parameters imageNo name and value are passed to yq. In the YAML file The below suggestions work only on yq versions <4. yml '(path==/mypath2). yaml is the file path of the YAML that you want to read. fruits= "banana "' file. name = "node-red") | . . I am trying to replace two values in the yaml file with two envir I am trying to replace the tag value but having no luck with sed Here is the file looks like and i would like to replace the tag value uniquely app1: tag: $ yq -j r file. yaml d. No temporary files are created by this. You must learn To make the change in-place, use yq with its --in-place or -i option. Fine and Replace Array in YAML file with yq. 2' yq -y < config. Let's say it Can't we just replace the corresponding key in the file instead of reading and writing complete writes data structure to an in memory file-object (like StringIO) and after writing returns the value as string. via homebrew brew install yq), define your variables and let yq do the replacement: Of course you can use a fileset instead of file in case you want to change values dynamically for multiple files (nested or whatever) Your template file xyz. name, . yaml file with yq and leaving the rest of the document intact. ipAddress: 192. 104. 4" - type: replace path $ yq r file. yml In similar manner, you could also remove task from Ansible Playbook. Speaking of which - how about changing remote_user in all tasks in an Ansible Playbook - here, let's change it to root: yq eval '. <<:has actually been removed in the 1. Replace value in yaml file using yq. e f a. key3 my_new_value Describe the bug dont see docs on how to change value Version of yq: 4. It is much easier to use the jq or yq tools to process structured files. Case insensitive tip: prefix the regex with (?i) - e. But the style operator enables the change of the printing style into other 5 formats, double Getting Started with yq Usage: yq [flags] yq [command] Examples: # yq defaults to 'eval' command if no command is specified. env[0]. v3. yq. Modified 1 year, 8 months ago. key1 | . \1: is the content of the text in parentheses in the PATTERN. containers[0]. replace a value in yaml using yq and sed. yml Closing Thoughts I have the following yaml file called file. I know it's late but this can help if you want to pass the value from a variable. yq write [yaml_file] [path_expression] [value] [flags] You were right in identifying the path_expression, but just didn't include the right quotes to wrap the replacement text. The key inside both file: ' file. The simplicity and flexibility offered by yq cater to developers and system administrators who deal with YAML configurations, making it an indispensable tool for those frequently working with data in a structured format. name==image (This would be equivalent to using helm install -f with multiple local values files, rather than helm install --set individual values. yml in place yq -i '. Currently I am trying to update a value in Github CI with YQ for my deployment on digital ocean app platform. yml '(. File: apiVersion: apps/v1 kind: Deployment metadata: labels: app: <SOME_NAME> name: <SOME_NAME> namespace: How to change a value in yaml file with a bash command? 0. 168. The output, if changing the given document like shown above, would be yq -y '. action == "want-to-update"). But as suggested already use the proper tool for parsing/editing yaml file. You can use the following My goal is to update the route in the first file with the value of the route in the second file. yq eval -i 'del(. Copy-h, --help help for eval-C, --colors force print with colors-e, --exit-status set exit status if there are no matches or null or false is returned-I, --indent int sets indent level for output (default 2)-i, --inplace update the yaml file inplace of first yaml file given. keyword = input' file newdata The output, given the data in the question: not_keyword: 'something' keyword: 'condition 1 condition 2 condition 3' another_not_keyword: 'something' Replace values in yml file with Shell variable. template. yml app1: tag: dev-0. Related. key2 = new_value' file. Given a list in YAML, I want to dynamically replace all values of source. test("(?i)cats)". Hot Network Questions Does a positive outcome for the victim of a crime give the perpetrator a defense? Escape quote marks when doing a commit with VimFugitive yq -y '. io/serving" custom: template: image: type: string description: "" eventing: image: "docker. Generate yq doesnt have string replace (yet) best way you can do it is to extract the value out, pipe it through sed to update it, then write it back using yq. It is a shorthand for to_entries | map(foo) | from_entries (see jq manual). Add new values. yaml --- action: "want-to-update" foo: |- { "a" : "actual A" Tried to update with yq and jq. It's cumbersome but it should work till a replace operator is added In my yaml file I have this persons array (it only has one element always) persons: - name: mario version: 1. For that I want to make both the pattern and the replacement value variable. web: environment: - DEBUG=1 yq replace a value with another value of a map. Ask Question Asked 1 year, 8 months ago. Viewed 538 times 0 . = "new value". Hot Network Questions Best numerical scheme for solving an equation with several variables How to find the real net force on an object observed from two frames seeing each other to be accelerated? I have a . json" object and the task creates a new field at the end (see config. app1. I want to build a pipeline function that replaces a value in a yaml file. Update value in yaml using yq and returning the whole yaml content. HA_PGPOOL_VIRTUAL yq w temp. json as idiomatic YAML yq -P sample. yml $ cat newfile. a | select(has("b")) | . For example, here's my file: apiVersion: v2 name: my-chart versi @HutgerHauer If the new value is based on the old one, you need the update assignment operator |= (as we do with sub). Install the YAML processor yq (e. I tried with yq -i '. yml file right after. Update Existing values. yml # print contents of sample. Now if I want to write more than one value, I need to call yq multiple times. The trick is to convert the object into an array, apply the selection to the array elements and then convert it back into an object. yq w <yaml_file> <path_expression> <new value> See docs for and for more details, including controlling quotes and tags. yaml details. Copy How can I use yq to replace the value: <base64_string> with it's decoded value? The desired output would be: - id: 1. REPLACEMENT is what you now want to appear in the modified content. name = "go:dev"' file. yml yq query result can also be piped into each other. It is similar to jq which focuses on transforming JSON instead of YAML. sed to edit yaml file with individual values to each key. yq e '. In mikefarah/yq the write syntax takes the form. yaml file in Python using Pyyaml or Ruamel. 0 yq In yq 3 it's possible to update a multiline value like: yq w -i configmap. sudo snap install yq yq --version Sample yaml. Editing a . Our document looks like: Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company The merge functionality from yaml v1. Ask Question Asked 5 years, 2 months How can I make the shell script replace all vIP1 values with virtualIP1 and vIP2 with virtualIP2 in shell script export virtualIP1='10. #!/bin/bash FILE=' some: fields: "value" images: image_1: name: "some-name" value: This is by no way as reliable as yq but you can use this awk if your yaml file structure is same as how it is shown in question: Replacing Values in Yaml file using Sed cmd. yml sed will replace em all. app2. The recent versions have a much improved DSL, like that of jq. 6. yml The . yaml file I want to update with Python code. Note that there is also an additional ref operator that holds a reference (instead of a copy) of the path, allowing you to make multiple changes to the same path. A: a: a1: value3 How can I merge them, but either have a key in it multiple times or have the values separates by e. If I try use a filter such as yq eval '. ) releases I have a helm dependencies chart that I'm willing to programmatically search and replace a specific Chart name with a given version. 4. update yaml array using yq. /test. io/eventing" If you want to change the value, use the "-i" parameter. If the document in the question is partial and does not show its true structure (the extra two spaces of indentation implies that what we're seeing are sections on a secondary level), then you may need to use. pod. yq -y 'del(. then. In this example, we have set a new value for the Use the [+] operator to append new value to an existing array. If not (when just setting a value unrelated to the old one), the assignment operator = suffices, e. apiVersion: While this command makes the needed change, it outputs the entire json on the terminal and does not make change to the file itself. Or if you want to update the whole array command you could do in v4. Since the file is specifically a YAML file, would yq (a wrapper around jq) it sets the value after the : to your new desired one and sets the respective flag so that any further occurrences of these keywords are disregarded To make the change in the original file, just add -i: sed -i -Ez 's/(username:)[^\n]*/\1toto/; s I have the following map of strings and I would like to change the value of "image. value[+]' "value3" - type: replace path: /mypath1 value: - "10. Example: yq -i '. server: application_connectors: - type: http port: 8989 bind_host: localhost request_log: appenders: [] admin_connectors: - type: http port: 8990 bind_host: localhost I am currently working with editing/modifying yml files. 18+ is preferred. For convenience, the yq call was moved into a shell function (we're potentially doing two extremely similar calls to yq, so this seemed reasonable). 3. b c And we run a command: yq w -i xxx. 使用 yq v4 向 YAML 值添加格式 - Add formatting to a YAML value with yq v4 yq 替换值保持 rest 完好无损 - yq replace value keep rest intact 使用 yq 根据条件更新 YAML 下的特定对象值 - Update a specific object value under YAML based on a condition using yq 如何使用 yq 更改嵌套 YAML 记录中的值 - How to Use the alias and anchor operators to read and write yaml aliases and anchors. This doesn’t always give a good result. Sometimes I require that the value assigned is a list or a dict. yaml example below, the last three rows). foo' sample. 1 critical: false value: Reading in another yaml file and using the key: value map to append to the array based on the matched id? – 4x0v7. 0. node[strenv(nodename)]' example. stuff' < myfile. yq doesnt have string replace (yet) best way you can do it is to extract the value out, pipe it through sed to update it, then write it back using yq. yq supports YAML update with the usual pattern yq e -i '. group[]. See the notes at bottom if you need manual installation instead. -M, --no-colors force print with no colors-N, --no-doc Don't print document separators (---)-n, --null-input Don't read yq -i eval '. Some administrators use sed or regular expressions to replace variable values in structured files (JSON or YAML). tag = "dev-0. The explode operator normalises a yaml file (dereference (or expands) aliases and remove anchor names). yaml` with this I am trying to change the bind_host: localhost to bind_host: 0. yq --style double w -i myfile. 3. I want the key "currentVersion" to get it's value updated but for some reason I just can't access the "config. 2. – I am looking for some help with using "yq" to replace / add existing array elements by name. , 1. Create a /tmp/batch-file. I'm giving a solution using yq by Andrey Kislyuk (not Mike Farah's yq), which is YAML-aware: yq -Y '. yml but it just adds it as a value The fix is quite trivial. export LB_IP=1. For example, a jq filter that counts entries in the Instances array will come up with 4 entries instead of 2. services. It's cumbersome but it should I am trying to replace a value for key ipAddress using sed for the below yaml block: id: network-1111 . Note that the first file in reality will have many routes but for demonstration purposes I am only showing the first in this example. See "yq eval --help" for more examples. yml). This yq utility can also do "in-place" edits if given the -i option. 17. 0 where the bind_host is the 3rd layer nested value of YAML file Current value of File. bar_proxy. containers[] | select(. yml Share. I am trying to substitute all substrings in a yaml file with yq. name banana . Here are the steps for installing the latest yq on Snap enabled systems like Ubuntu/Debian. Alternatively, if the file always has this structure, and it's those particular "name" fields you want to change, not just any old name, you can also just list them out and assign to them as a group as well:. /bin/yq write -i file. ## This is a comment. name) |= "XXXX"' This does the same assignment to helm install -f takes any valid YAML file; but every valid JSON file is a valid YAML file, so if your CI tool can write out JSON, it can create a file that can be passed to helm install -f. So the question is how do i replace the value of the image key only when the above key value contains name: node-red i have tried: yq '. Also conditionally? Appreciate your help in this regard. key = "5678"' file. ddwfzp ltgpz qinin ppa luzlu rhnqi qszyq uyjyndr zda todjpp bfcpam bfv qzt aytgb xvebm