YML Error when using shell module

[CaptainBrewing]

Hello, I am using the shell module to run a command inside a docker container and it is giving me a yaml error. The command is stupid silly complicated ;-) Is there a way to get Ansible to just send it as is and ignore \ escape out the characters that may be freaking out Yaml?

Here is an example of a  basic command that does work. 

shell: docker exec -it  9d5e563a6e9e  bash -c "cd /var/log ; ls; cat bootstrap.log"

However this command gives me a yaml eror 

shell: docker exec -it 9d5e563a6e9e  bash -c "echo 'rs.initiate({_id: \"mongors1conf\",configsvr: true, members: [{ _id : 0, host : \"mongocfg1\" },{ _id : 1, host : \"mongocfg2\" }, { _id : 2, host : \"mongocfg3\" }]})' | mongo"

Here is a snippet of the error 

ERROR! Syntax Error while loading YAML.

  mapping values are not allowed in this context

    shell: docker exec -it 9d5e563a6e9e  bash -c "echo 'rs.initiate({_id: \"mongors1conf\",configsvr: true, members: [{ _id : 0, host : \"mongocfg1\" },{ _id : 1, host : \"mongocfg2\" }, { _id : 2, host : \"mongocfg3\" }]})' | mongo"

                                                                                                ^ here

This command works just fine at the bash shell of the docker host. I have tried the ansible shell and the Ansible command module 

I know this command looks complicated but please keep in mind I am only asking how to format this to work in Ansible. I am not asking you to understand docker exec Mongodb commands ;-) 

Thanks for your help 

[Dick Visser]

On Sun, 7 Feb 2021 at 04:43, CaptainBrewing <lan...@gmail.com> wrote:

Hello, I am using the shell module to run a command inside a docker container and it is giving me a yaml error. The command is stupid silly complicated ;-) Is there a way to get Ansible to just send it as is and ignore \ escape out the characters that may be freaking out Yaml?

Here is an example of a  basic command that does work. 

shell: docker exec -it  9d5e563a6e9e  bash -c "cd /var/log ; ls; cat bootstrap.log"

However this command gives me a yaml eror 

shell: docker exec -it 9d5e563a6e9e  bash -c "echo 'rs.initiate({_id: \"mongors1conf\",configsvr: true, members: [{ _id : 0, host : \"mongocfg1\" },{ _id : 1, host : \"mongocfg2\" }, { _id : 2, host : \"mongocfg3\" }]})' | mongo"

Here is a snippet of the error 

ERROR! Syntax Error while loading YAML.

  mapping values are not allowed in this context

    shell: docker exec -it 9d5e563a6e9e  bash -c "echo 'rs.initiate({_id: \"mongors1conf\",configsvr: true, members: [{ _id : 0, host : \"mongocfg1\" },{ _id : 1, host : \"mongocfg2\" }, { _id : 2, host : \"mongocfg3\" }]})' | mongo"

                                                                                                ^ here

This command works just fine at the bash shell of the docker host. I have tried the ansible shell and the Ansible command module 

Did you try one of the dedicated docker modules?

https://docs.ansible.com/ansible/latest/collections/community/general/docker_container_module.html

I know this command looks complicated but please keep in mind I am only asking how to format this to work in Ansible. I am not asking you to understand docker exec Mongodb commands ;-) 

Thanks for your help 

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Sent from a mobile device - please excuse the brevity, spelling and punctuation.

[Vladimir Botka]

On Sat, 6 Feb 2021 19:43:07 -0800 (PST)
CaptainBrewing <lan...@gmail.com> wrote:

> Hello, I am using the shell module to run a command inside a docker
> container and it is giving me a yaml error. The command is stupid silly
> complicated ;-) Is there a way to get Ansible to just send it as is and
> ignore \ escape out the characters that may be freaking out Yaml?
>
> Here is an example of a basic command that does work.
>

> *shell*: docker exec -it 9d5e563a6e9e bash -c "cd /var/log ; ls; cat

> bootstrap.log"
>
>
> However this command gives me a yaml eror
>

> *shell*: docker exec -it 9d5e563a6e9e bash -c "echo 'rs.initiate({_id:

> \"mongors1conf\",configsvr: true, members: [{ _id : 0, host : \"mongocfg1\"
> },{ _id : 1, host : \"mongocfg2\" }, { _id : 2, host : \"mongocfg3\" }]})'
> | mongo"

FWIW, test the run-string first. For example

- set_fact:
my_init: '{_id: \"mongors1conf\",

configsvr: true,
members: [{_id: 0, host: \"mongocfg1\"},
{_id: 1, host: \"mongocfg2\"},

{_id: 2, host: \"mongocfg3\"}]}'
- shell: "echo 'echo \"rs.initiate({{ my_init }})\"|mongo'"
register: result
- debug:
var: result.stdout

should give

result.stdout: 'echo "rs.initiate({_id: \"mongors1conf\",

configsvr: true, members: [{_id: 0, host: \"mongocfg1\"}, {_id: 1,

host: \"mongocfg2\"}, {_id: 2, host: \"mongocfg3\"}]})"|mongo'

Send it to mongo if it looks like what you want. But, mongo should
accept JSON. It'd be simpler to create a dictionary in YAML and use
the Ansible filter *to_json* to convert the data. In addition to this
filter use Jinja filter *tojson* to escape the quotes and strip the
leading and cloding quote. For example

- set_fact:
my_init: "{{ (my_init_yaml|to_json|tojson)[1:-1] }}"
vars:
my_init_yaml:
_id: mongors1conf
configsvr: true
members:
- _id: 0
host: mongocfg1
- _id: 1
host: mongocfg2
- _id: 2
host: mongocfg3
- shell: "echo 'echo \"rs.initiate({{ my_init }})\"|mongo'"
register: result
- debug:
var: result.stdout

should give valid escaped JSON

result.stdout: 'echo "rs.initiate({\"_id\": \"mongors1conf\",
\"configsvr\": true, \"members\": [{\"_id\": 0, \"host\":

\"mongocfg1\"}, {\"_id\": 1, \"host\": \"mongocfg2\"}, {\"_id\": 2,

\"host\": \"mongocfg3\"}]})"|mongo'

Ref: No quotes in MongoDB JSON
https://stackoverflow.com/questions/35100836/no-quotes-in-mongodb-json


--
Vladimir Botka

[Joe Langdon]

Yeah I did look at the Docker Module. Unfortunately, it does not have any modules for what I am doing

Vladimir, very thankful for your well thought out and detailed answer! This gives me enough information to explore the json option

--

Joe Langdon

Sometimes when you think life is kicking you in the ass, it's actually just moving you quickly to a better place.