Linux sites no reload

README.md

#80: skupper.v2.system / reload does not restart process on linux/systemd sites

skupperproject/skupper-ansible#80

This test creates a site and starts it, before adding a Listener and a Connector and reloading the site.

Next, it checks the consequence of the creation of the Listener: port 8082 should be opened.

It works fine for platforms podman and docker, but it fails for linux. And that's because the process is never restarted on systemd.

The playbook provides a way to see that, showing the timestamps of the skrouterd configuration file and of the process: on linux only, the file is more recent than the process.

If one manually stops and starts the systemd service on the target machine, however, the port gets opened.

Note that the test has listener and container on the same namespace with the same routingKey. The intention is simply to have the listener match so it opens the port.

To run the test:

ansible-playbook -i SOME_IP, ./main.yaml -e skupper_platform=linux -vv

Experiment with the differet platforms.

ansible.cfg

[defaults]

stdout_callback = yaml

main.yaml

---

- name: Test
  hosts: all
  gather_facts: no
  tasks:
  - name: Create site
    skupper.v2.resource:
      platform: "{{ skupper_platform }}"
      namespace: asdf
      def:
        apiVersion: skupper.io/v2alpha1
        kind: Site
        metadata:
          name: asdf
#        spec:
  - name: Start the site
    skupper.v2.system:
      action: start
      namespace: asdf
      platform: "{{ skupper_platform }}"
  - name: Create a Listener
    skupper.v2.resource:
      platform: "{{ skupper_platform }}"
      namespace: asdf
      state: latest
      def:
        apiVersion: skupper.io/v2alpha1
        kind: Listener
        metadata:
          name: asdf-listener
          namespace: asdf
        spec:
          routingKey: asdf
          port: 9191
          host: localhost
  - name: Create a Connector
    skupper.v2.resource:
      platform: "{{ skupper_platform }}"
      namespace: asdf
      state: latest
      def:
        apiVersion: skupper.io/v2alpha1
        kind: Connector
        metadata:
          name: asdf-connector
          namespace: asdf
        spec:
          routingKey: asdf
          port: 9192
          host: localhost
  - name: Reload the site
    skupper.v2.system:
      action: reload
      namespace: asdf
      platform: "{{ skupper_platform }}"
  - name: Check status
    ansible.builtin.shell:
      cmd: "{{ item }}"
    loop:
    - ps -C skrouterd -o pid,lstart,cmd
    - stat ~/.local/share/skupper/namespaces/*/runtime/router/skrouterd.json
    failed_when: false
    register: commands
  - name: Compare output - file timestamp vs process start time
    ansible.builtin.debug:
      var: commands.results | community.general.json_query('[].stdout')

  - name: Wait for 9191 to be opened
    ansible.builtin.wait_for:
      port: 9191
      state: started
      timeout: 60
    when: wait | default (true) | bool
  - name: Pause
    ansible.builtin.pause:
  - name: Teardown
    skupper.v2.system:
      namespace: asdf
      platform: "{{ skupper_platform }}"
      action: stop