How to do multiline shell script in Ansible

Question

right now I am using a shell script in ansible that would be much more readable if it was on multiple lines  - name  iterate user groups   shell  groupmod -o -g    item  guid         item  username          more stuff to do   with items      users       Just not sure how to allow multiline script in Ansible shell module

User · Answer

https   support ansible com hc en-us articles 201957837-How-do-I-split-an-action-into-a-multi-line-format-  mentions YAML line continuations   As an example  tried with ansible 2 0 0 2    --- - hosts  all   tasks      - name  multiline shell command       shell   gt          ls --color          home       register  stdout      - name  debug output       debug  msg    stdout      The shell command is collapsed into a single line  as in ls --color  home

User · Answer

Ansible uses YAML syntax in its playbooks   YAML has a number of block operators    The  gt  is a folding block operator   That is  it joins multiple lines together by spaces   The following syntax   key   gt    This text   has multiple   lines   Would assign the value This text has multiple lines n to key  The   character is a literal block operator   This is probably what you want for multi-line shell scripts  The following syntax   key      This text   has multiple   lines   Would assign the value This text nhas multiple nlines n to key    You can use this for multiline shell scripts like this   - name  iterate user groups   shell        groupmod -o -g    item  guid         item  username           do some stuff here     and some other stuff   with items      users       There is one caveat  Ansible does some janky manipulation of arguments to the shell command  so while the above will generally work as expected  the following won t   - shell        cat  lt  lt EOF     This is a test      EOF   Ansible will actually render that text with leading spaces  which means the  shell will never find the string EOF at the beginning of a line   You can avoid Ansible s unhelpful heuristics by using the cmd parameter like this   - shell      cmd          cat  lt  lt EOF       This is a test        EOF

User · Answer

I prefer this syntax as it allows to set configuration parameters for the shell  --- - name  an example   shell      cmd          docker build -t current dir         echo  quot Hello World quot        date      chdir   home vagrant

User · Answer

Adding a space before the EOF delimiter allows to avoid cmd   - shell        cat  lt  lt   EOF      This is a test      EOF

[shell] How to do multiline shell script in Ansible

Examples related to shell

Examples related to ansible