I'm trying to create a basic dynamic inventory script for ansible based on
json output. I'm new to jq but I've hit an issue where the dynamic script
on ansible v2.9.14 & 2.9.15 doesn't like the output, but if I send the
output to a file and then run Ansible against the output in the file,
ansible works.
I know there will be syntax issues with trailing commas on the last
key:value and I have an awful sed at the end of the curl to get it to look
right.
This is what happens:
dynamic inventory script output:
```$ ./dynamic1.sh
{
"all": {
"hosts": {
"ip-172-31-39-30.eu-west-1.compute.internal": null,
"ip-172-31-44-224.eu-west-1.compute.internal": null,
"ip-172-31-42-6.eu-west-1.compute.internal": null,
"ip-172-31-32-68.eu-west-1.compute.internal": null,
}
}
}
```
Ansible run and error:
```
$ ansible -i ./dynamic1.sh all -m ping -u ubuntu
[WARNING]: * Failed to parse /home/ubuntu/dynamic1.sh with script plugin:
failed to parse executable inventory script results from
/home/ubuntu/dynamic1.sh:
Expecting property name enclosed in double quotes: line 8 column 5 (char
242)
[WARNING]: * Failed to parse /home/ubuntu/dynamic1.sh with ini plugin:
/home/ubuntu/dynamic1.sh:2: Expected key=value host variable assignment,
got: {
[WARNING]: Unable to parse /home/ubuntu/dynamic1.sh as an inventory source
[WARNING]: No inventory was parsed, only implicit localhost is available
[WARNING]: provided hosts list is empty, only localhost is available. Note
that the implicit localhost does not match 'all'
```
Now, if I output the dynamic script run to a file, then run ansible again,
it works:
```
$ ./dynamic1.sh > output.json
$ cat output.json
{
"all": {
"hosts": {
"ip-172-31-39-30.eu-west-1.compute.internal": null,
"ip-172-31-44-224.eu-west-1.compute.internal": null,
"ip-172-31-42-6.eu-west-1.compute.internal": null,
"ip-172-31-32-68.eu-west-1.compute.internal": null,
}
}
}
$ ansible -i output.json all -m ping -u ubuntu
[DEPRECATION WARNING]: Distribution Ubuntu 16.04 on host
ip-172-31-42-6.eu-west-1.compute.internal should use /usr/bin/python3, but
is using /usr/bin/python for
backward compatibility with prior Ansible releases. A future Ansible
release will default to using the discovered platform python for this host.
See
https://docs.ansible.com/ansible/2.9/reference_appendices/interpreter_discovery.html
for more information. This feature will be removed in version 2.12.
Deprecation
warnings can be disabled by setting deprecation_warnings=False in
ansible.cfg.
ip-172-31-42-6.eu-west-1.compute.internal | SUCCESS => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false,
"ping": "pong"
}
ip-172-31-39-30.eu-west-1.compute.internal | SUCCESS => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python3"
},
"changed": false,
"ping": "pong"
}
ip-172-31-32-68.eu-west-1.compute.internal | SUCCESS => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python3"
},
"changed": false,
"ping": "pong"
}
ip-172-31-44-224.eu-west-1.compute.internal | SUCCESS => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python3"
},
"changed": false,
"ping": "pong"
}
```
This is the contents of dynamic1.sh. I know there will be better ways to do
this but I just need a list of servers based on a matching variable in the
JSON output.
```
$ cat dynamic1.sh
#!/bin/bash
echo "{"
echo " \"all\": {"
echo " \"hosts\": {"
curl --silent -X GET https://url.com/api/servers -H "Authorization: Token
$token" -H "Content-Type: text/json" -H "Accept:application/json" | jq -r
'.Result.servers[] | select(.ansible_local.local.local_facts.instance_type
| tostring | contains("t2.micro")) | (.ansible_fqdn+"\": null,")' | sed
's/^/"/g'
echo " }"
echo " }"
echo "}"
```
Can anyone give me any help on why does ansible accepts the file but not
the output of the script?
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