No match for argument: python2-dnf on tripleo reproducer libvirt Fedora 30

[chandan kumar]

Below is the steps to reproduce the same on fedora 30:
1. wget http://logs.openstack.org/26/657626/1/check/tripleo-ci-centos-7-standalone/ec14df6/logs/reproducer-quickstart/reproducer-zuul-based-quickstart.tar
2. tar -xvf reproducer-zuul-based-quickstart.tar
3. bash reproducer-zuul-based-quickstart.sh --libvirt
Shell exists as docker started
4. bash reproducer-zuul-based-quickstart.sh --libvirt
First failure:
TASK [Install libvirt packages] ***************************************************************************************************************************************************************
task path: /tmp/reproduce-tmp.cpfHF/roles/ansible-role-tripleo-ci-reproducer/tasks/libvirt/main.yaml:5

TASK [parts/libvirt : Check for older iPXE rpm] ***********************************************************************************************************************************************
task path: /tmp/reproduce-tmp.cpfHF/roles/parts/libvirt/tasks/main.yml:4
ok: [localhost] => {"changed": false, "cmd": "if rpm -q ipxe-roms-qemu-20130517; then\n rpm -e --nodeps ipxe-roms-qemu-20130517 && echo \"rpm removed\";\n fi;", "delta": "0:00:00.006832", "end": "2019-05-08 12:47:48.465657", "rc": 0, "start": "2019-05-08 12:47:48.458825", "stderr": "", "stderr_lines": [], "stdout": "package ipxe-roms-qemu-20130517 is not installed", "stdout_lines": ["package ipxe-roms-qemu-20130517 is not installed"]}

TASK [parts/libvirt : Install packages for libvirt] *******************************************************************************************************************************************
task path: /tmp/reproduce-tmp.cpfHF/roles/parts/libvirt/tasks/main.yml:17
fatal: [localhost]: FAILED! => {"changed": false, "cmd": "dnf install -y python2-dnf", "msg": "Error: Unable to find a match", "rc": 1, "stderr": "Error: Unable to find a match\n", "stderr_lines": ["Error: Unable to find a match"], "stdout": "Last metadata expiration check: 0:05:13 ago on Wed 08 May 2019 12:42:36 PM IST.\nNo match for argument: python2-dnf\n", "stdout_lines": ["Last metadata expiration check: 0:05:13 ago on Wed 08 May 2019 12:42:36 PM IST.", "No match for argument: python2-dnf"]}
 to retry, use: --limit @/tmp/reproduce-tmp.cpfHF/launcher-playbook.retry

PLAY RECAP ************************************************************************************************************************************************************************************
localhost : ok=28 changed=13 unreachable=0 failed=1

[chandan kumar (chkumar246)]

Related issue: https://github.com/ansible/ansible/issues/54855

[chandan kumar (chkumar246)]

on adding with reproducer script -e "ansible_python_interpreter=/usr/bin/python3"

TASK [Install python dependencies] ************************************************************************************************************************************************************
task path: /tmp/reproduce-tmp.L0sAK/playbooks/tripleo-ci-reproducer/pre.yaml:41
FAILED - RETRYING: Install python dependencies (3 retries left).
FAILED - RETRYING: Install python dependencies (2 retries left).
FAILED - RETRYING: Install python dependencies (1 retries left).
fatal: [localhost]: FAILED! => {"attempts": 3, "changed": false, "msg": "Unable to find any of pip3 to use. pip needs to be installed."}
 to retry, use: --limit @/tmp/reproduce-tmp.L0sAK/launcher-playbook.retry

PLAY RECAP ************************************************************************************************************************************************************************************
localhost : ok=7 changed=2 unreachable=0 failed=1

[chandan kumar (chkumar246)]

Reinstall python3-pip then set python_cmd=${USER_PYTHON_OVERRIDE:=python3} then run
bash reproducer-zuul-based-quickstart.sh -e "ansible_python_interpreter=/usr/bin/python3" -l

TASK [libvirt/setup/common : Start volume pool] ***********************************************************************************************************************************************
task path: /tmp/reproduce-tmp.Qyj7N/roles/libvirt/setup/common/tasks/main.yml:33
fatal: [localhost]: FAILED! => {"changed": false, "msg": "The `libvirt` module is not importable. Check the requirements."}

[chandan kumar (chkumar246)]

Install python3-libvirt python3-lxml and python3-netaddr to avoid python3 import errors

[chandan kumar (chkumar246)]

TASK [libvirt/setup/overcloud : Set hostname correctly for subnode-0] *************************************************************************************************************************
task path: /tmp/reproduce-tmp.7EdH4/roles/libvirt/setup/overcloud/tasks/register_vm.yml:37
fatal: [localhost -> 192.168.122.11]: FAILED! => {"changed": false, "module_stderr": "Shared connection to 192.168.122.11 closed.\r\n", "module_stdout": "/bin/sh: /usr/bin/python3: No such file or directory\r\n", "msg": "The module failed to execute correctly, you probably need to set the interpreter.\nSee stdout/stderr for the exact error", "rc": 127}
 to retry, use: --limit @/tmp/reproduce-tmp.7EdH4/launcher-playbook.retry

PLAY RECAP ************************************************************************************************************************************************************************************
localhost : ok=100 changed=42 unreachable=0 failed=1

[chandan kumar (chkumar246)]

Set in /etc/ansible/hosts
[subnode-0:vars]
ansible_python_interpreter=/usr/bin/python2

then run bash reproducer-zuul-based-quickstart.sh -l -ug chkumar246 -rg chkumar246 and we are good to go.

[chandan kumar (chkumar246)]

TASK [ansible-role-tripleo-ci-reproducer : Push zuul.yaml to launch job] **********************************************************************************************************************
task path: /tmp/reproduce-tmp.I0LhG/roles/ansible-role-tripleo-ci-reproducer/tasks/launch-job.yaml:20
changed: [localhost] => {"changed": true, "cmd": "set -e\n#FIXME: for centos7 the git version is too old for the local gerrit\n# hooks so we get them from upstream\nmkdir -p .git/hooks/\nscp -p -P 29418 -i /home/raukadah/.ssh/id_rsa \\\<email address hidden>:hooks/commit-msg \\\n .git/hooks/\ngit config --local user.name Admin\ngit config --local user.email <email address hidden>\ngit remote add gerrit ssh://admin@localhost:29418/test1\nif ! git rev-parse --verify master; then\n git checkout -t origin/master\nfi\ngit add zuul.yaml\ngit commit -m 'Add job to launch\nDepends-On: https://review.opendev.org/657626\n'\ngit push origin HEAD:refs/for/master 2>&1 | tee push.log\ngrep \"remote:.*http\" push.log | awk '{print $2}' | tee url.txt\nsed \"s/.*\\/\\([0-9]*\\)$/\\1/\" url.txt| tee review.txt\ngit rev-parse HEAD | tee commit.txt\necho -n $(cat review.txt),1 | tee change.txt\n", "delta": "0:00:05.347379", "end": "2019-05-09 13:10:27.192722", "rc": 0, "start": "2019-05-09 13:10:21.845343", "stderr": "", "stderr_lines": [], "stdout": "e2dc572a0278552c5781cea1026614f2bf0164e4\n[master 67144d4] Add job to launch Depends-On: https://review.opendev.org/657626\n 1 file changed, 16 insertions(+)\n create mode 100644 zuul.yaml\nremote: \rremote: Processing changes: refs: 1, new: 1\rremote: Processing changes: refs: 1, new: 1\rremote: Processing changes: refs: 1, new: 1\rremote: Processing changes: refs: 1, new: 1, done \nremote: \nremote: SUCCESS \nremote: \nremote: New Changes: \nremote: http://localhost:8080/c/test1/+/1001 Add job to launch Depends-On: https://review.opendev.org/657626 \nTo ssh://localhost:29418/test1\n * [new branch] HEAD -> refs/for/master\nhttp://localhost:8080/c/test1/+/1001\n1001\n67144d420d59f6b4e731f40510e1ec07a4e912f8\n1001,1", "stdout_lines": ["e2dc572a0278552c5781cea1026614f2bf0164e4", "[master 67144d4] Add job to launch Depends-On: https://review.opendev.org/657626", " 1 file changed, 16 insertions(+)", " create mode 100644 zuul.yaml", "remote: ", "remote: Processing changes: refs: 1, new: 1", "remote: Processing changes: refs: 1, new: 1", "remote: Processing changes: refs: 1, new: 1", "remote: Processing changes: refs: 1, new: 1, done ", "remote: ", "remote: SUCCESS ", "remote: ", "remote: New Changes: ", "remote: http://localhost:8080/c/test1/+/1001 Add job to launch Depends-On: https://review.opendev.org/657626 ", "To ssh://localhost:29418/test1", " * [new branch] HEAD -> refs/for/master", "http://localhost:8080/c/test1/+/1001", "1001", "67144d420d59f6b4e731f40510e1ec07a4e912f8", "1001,1"]}

TASK [ansible-role-tripleo-ci-reproducer : Set facts about review] ****************************************************************************************************************************
task path: /tmp/reproduce-tmp.I0LhG/roles/ansible-role-tripleo-ci...