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I would like to render " as is in my Ansible code below.

I am trying to escape the output of cachedNodeModulesPath with \" expecting that the resulting command is like this mv "/src/somepath/nodemodules" || restofcommand.

What I get instead is mv \"restofcommand and my script fails during execution.

My Ansible code is:

- name: "yarn install {{ codePath }}"
  shell: "docker container run --rm --entrypoint='' -u root \
              -v {{ codePath }}:/usr/src/app \
              -w /usr/src/app \
              node:16.4.0 /bin/bash -c 'mv \"{{ cachedNodeModulesPath }}\" node_modules || YARN_CACHE_FOLDER=/yarn-cache yarn install'"
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Kristi Jorgji
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1 Answers1

1

I am trying to escape the output of cachedNodeModulesPath with \"

According Manipulating strings you could probably use

{{ cachedNodeModulesPath | quote }}

To add quotes for shell usage

Furthermore, there are other notations possible in YAML. In example by using |, literal block operator like

  - name: Exec sh script
    shell:
      cmd: |
        docker container run --rm --entrypoint='' -u root \
               -v {{ codePath }}:/usr/src/app \
               -w /usr/src/app \
               node:16.4.0 /bin/bash -c 'mv {{ cachedNodeModulesPath | quote }} node_modules || YARN_CACHE_FOLDER=/yarn-cache yarn install'
    register: result

... only partially tested because of lack of environment

At least, for a key value of

    cachedNodeModulesPath: "/home/{{ ansible_user }}/test"

it will try to execute

/bin/bash -c 'mv /home/user/test node_modules || YARN_CACHE_FOLDER=/yarn-cache yarn install'

If double quotes are needed and not single quotes

  vars:

    codePath: "/home/{{ ansible_user }}"
    cachedNodeModulesPath: "/home/domain user/test"

  tasks:

  - name: Exec sh script
    shell:
      cmd: |
        docker container run --rm --entrypoint='' -u root \
               -v {{ codePath }}:/usr/src/app \
               -w /usr/src/app \
               node:16.4.0 /bin/bash -c 'mv "{{ cachedNodeModulesPath }}" node_modules || YARN_CACHE_FOLDER=/yarn-cache yarn install'
    register: result

will try to execute

/bin/bash -c 'mv "/home/domain user/test" node_modules || YARN_CACHE_FOLDER=/yarn-cache yarn install'

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