Molecule idempotence test is not working during standalone execution via Docker

Issue Type

• Bug report

Molecule and Ansible details

ansible 2.7.9
molecule 2.20.0

Molecule installation method (one of):

• Using Molecule from Docker image: quay.io/ansible/molecule:2.20

Ansible installation method (one of):

• Using Ansible from Docker image: quay.io/ansible/molecule:2.20

Detail any linters or test runners used:

Desired Behavior

I’m executing molecule tests by leveraging dind as from docs example. Idempotence scenario cannot find converged instances if I run it as standalone step. Is there are kind of limitation for this for dind execution? Debug also shows not so much information. If I run converge+idempotence scenarious at the same run, all is working OK.

Actual Behaviour

~/test-role$ docker run --rm -it \
>     -v "$(pwd)":/tmp/$(basename "${PWD}"):ro \
>     -v /var/run/docker.sock:/var/run/docker.sock \
>     -w /tmp/$(basename "${PWD}") \
>     quay.io/ansible/molecule:2.20 \
>     molecule create
--> Validating schema /tmp/test-role/molecule/default/molecule.yml.
Validation completed successfully.
--> Test matrix

└── default
    └── create

--> Scenario: 'default'
--> Action: 'create'

    PLAY [Create] ******************************************************************

    TASK [Log into a Docker registry] **********************************************
    skipping: [localhost] => (item=None)

    TASK [Create Dockerfiles from image names] *************************************
    changed: [localhost] => (item=None)
    changed: [localhost]

    TASK [Discover local Docker images] ********************************************
    ok: [localhost] => (item=None)
    ok: [localhost]

    TASK [Build an Ansible compatible image] ***************************************
    changed: [localhost] => (item=None)
    changed: [localhost]

    TASK [Create docker network(s)] ************************************************

    TASK [Determine the CMD directives] ********************************************
    ok: [localhost] => (item=None)
    ok: [localhost]

    TASK [Create molecule instance(s)] *********************************************
    changed: [localhost] => (item=None)
    changed: [localhost]

    TASK [Wait for instance(s) creation to complete] *******************************
    changed: [localhost] => (item=None)
    changed: [localhost]

    PLAY RECAP *********************************************************************
    localhost                  : ok=6    changed=4    unreachable=0    failed=0


~/test-role$ docker run --rm -it \
>     -v "$(pwd)":/tmp/$(basename "${PWD}"):ro \
>     -v /var/run/docker.sock:/var/run/docker.sock \
>     -w /tmp/$(basename "${PWD}") \
>     quay.io/ansible/molecule:2.20 \
>     molecule converge
--> Validating schema /tmp/test-role/molecule/default/molecule.yml.
Validation completed successfully.
--> Test matrix

└── default
    └── converge

--> Scenario: 'default'
--> Action: 'converge'

    PLAY [Converge] ****************************************************************

    TASK [Gathering Facts] *********************************************************
    ok: [molecule-host-]

    TASK [test-role : Ensure test user exists] *************************************
    changed: [molecule-host-]

    PLAY RECAP *********************************************************************
    molecule-host-             : ok=2    changed=1    unreachable=0    failed=0


~/test-role$ docker run --rm -it \
>     -v "$(pwd)":/tmp/$(basename "${PWD}"):ro \
>     -v /var/run/docker.sock:/var/run/docker.sock \
>     -w /tmp/$(basename "${PWD}") \
>     quay.io/ansible/molecule:2.20 \
>     molecule --debug idempotence
--> Validating schema /tmp/test-role/molecule/default/molecule.yml.
Validation completed successfully.
--> Test matrix

└── default
    └── idempotence

--> Scenario: 'default'
--> Action: 'idempotence'
ERROR: Instances not converged.  Please converge instances first.

~/test-role$ docker ps
CONTAINER ID        IMAGE                                                           COMMAND                  CREATED             STATUS              PORTS               NAMES
381ba0afe7e9        molecule_local/centos:latest                                    "/sbin/init"             2 minutes ago       Up 2 minutes                            molecule-host-

[prashant0085]

I guess to check idempotence locally you can execute molecule converge twice coz If I am not wrong molecule idempotence works as running molecule converge two times.

[ssbarnea]

@prashant0085 is right, that is by design. You either disable idempotence or assure that second run does not report any changed tasks.