Enable Zuul

This adds several .yaml files that specify jobs (those in folder
playbooks) and one that serves as the main config (.zuul.yaml).

Tests and builds are currently executed on every change in PRs (ie.,
check and gating) and periodically (according to the documentation
this pipeline should be run at least once a day).

There are 4 tests in total:

1. 'ninja test' - does the same thing that Travis did
2. Fedora 30 - runs the system tests with current Podman and Toolbox
   in Fedora 30
3. Fedora 31 - the same but for Fedora 31
4. Fedora Rawhide - the same but for Fedora Rawhide

#68

.zuul.yaml

@@ -0,0 +1,61 @@
+---
+- job:
+    name: shellcheck
+    description: Check toolbox with shellcheck
+    timeout: 300
+    nodeset:
+      nodes:
+        - name: ci-node-30
+          label: cloud-fedora-30-small
+    run: playbooks/shellcheck.yaml
+
+- job:
+    name: test-with-podman-stable-f30
+    description: Test toolbox with stable Podman in Fedora 30
+    timeout: 1200
+    nodeset:
+      nodes:
+        - name: ci-node-30
+          label: cloud-fedora-30-small
+    pre-run: playbooks/fedora-30/setup-rpm-env.yaml
+    run: playbooks/fedora-30/test-with-podman-stable.yaml
+
+- job:
+    name: test-with-podman-stable-f31
+    description: Test toolbox with stable Podman in Fedora 31
+    timeout: 1200
+    nodeset:
+      nodes:
+        - name: ci-node-31
+          label: cloud-fedora-31-small
+    pre-run: playbooks/fedora-31/setup-rpm-env.yaml
+    run: playbooks/fedora-31/test-with-podman-stable.yaml
+
+- job:
+    name: test-with-podman-rawhide
+    description: Test toolbox with latest Podman in Fedora Rawhide
+    timeout: 1200
+    nodeset:
+      nodes:
+        - name: ci-node-rawhide
+          label: cloud-fedora-rawhide-small
+    pre-run: playbooks/fedora-rawhide/setup-rpm-env.yaml
+    run: playbooks/fedora-rawhide/test-with-podman-stable.yaml
+
+- project:
+    periodic:
+      jobs:
+        - test-with-podman-rawhide
+        - test-with-podman-stable-f31
+        - test-with-podman-stable-f30
+    check:
+      jobs:
+        - shellcheck
+        - test-with-podman-stable-f30
+        - test-with-podman-stable-f31
+        - test-with-podman-rawhide
+    gate:
+      jobs:
+        - test-with-podman-stable-f30
+        - test-with-podman-stable-f31
+        - test-with-podman-rawhide

playbooks/fedora-30/setup-rpm-env.yaml

@@ -0,0 +1,22 @@
+---
+- hosts: all
+  tasks:
+    - name: Install requirements
+      become: yes
+      package:
+        name:
+          - golang-github-cpuguy83-go-md2man
+          - ninja-build
+          - meson
+          - flatpak-session-helper
+          - systemd
+          - bats
+          - bash-completion
+          - udisks2
+          - podman
+
+    - name: Setup environment (create missing /run/media)
+      command: sudo systemd-tmpfiles --create
+
+    - name: Check versions of crucial packages
+      command: rpm -q podman runc conmon fuse-overlayfs flatpak-session-helper

playbooks/fedora-30/test-with-podman-stable.yaml

@@ -0,0 +1,21 @@
+---
+- hosts: ci-node-30
+  tasks:
+    - name: Build toolbox
+      command: meson builddir
+      args:
+        chdir: '{{ zuul.project.src_dir }}'
+
+    - name: Install toolbox
+      become: yes
+      command: ninja -C builddir install
+      args:
+        chdir: '{{ zuul.project.src_dir }}'
+
+    - name: Run system tests
+      command: bats ./test/system
+      environment:
+        PODMAN: '/usr/bin/podman'
+        TOOLBOX: './toolbox'
+      args:
+        chdir: '{{ zuul.project.src_dir }}'

playbooks/fedora-31/setup-rpm-env.yaml

@@ -0,0 +1,22 @@
+---
+- hosts: all
+  tasks:
+    - name: Install requirements
+      become: yes
+      package:
+        name:
+          - golang-github-cpuguy83-md2man
+          - ninja-build
+          - meson
+          - flatpak-session-helper
+          - systemd
+          - bats
+          - bash-completion
+          - udisks2
+          - podman
+
+    - name: Setup environment (create missing /run/media)
+      command: sudo systemd-tmpfiles --create
+
+    - name: Check versions of crucial packages
+      command: rpm -q podman crun conmon fuse-overlayfs flatpak-session-helper

playbooks/fedora-31/test-with-podman-stable.yaml

@@ -0,0 +1,21 @@
+---
+- hosts: ci-node-31
+  tasks:
+    - name: Build toolbox
+      command: meson builddir
+      args:
+        chdir: '{{ zuul.project.src_dir }}'
+
+    - name: Install toolbox
+      become: yes
+      command: ninja -C builddir install
+      args:
+        chdir: '{{ zuul.project.src_dir }}'
+
+    - name: Run system tests
+      command: bats ./test/system
+      environment:
+        PODMAN: '/usr/bin/podman'
+        TOOLBOX: './toolbox'
+      args:
+        chdir: '{{ zuul.project.src_dir }}'

playbooks/fedora-rawhide/setup-rpm-env.yaml

@@ -0,0 +1,23 @@
+---
+- hosts: all
+  tasks:
+    - name: Install requirements
+      become: yes
+      package:
+        use: dnf
+        name:
+          - golang-github-cpuguy83-md2man
+          - ninja-build
+          - meson
+          - flatpak-session-helper
+          - systemd
+          - bats
+          - bash-completion
+          - udisks2
+          - podman
+
+    - name: Setup environment (create missing /run/media)
+      command: sudo systemd-tmpfiles --create
+
+    - name: Check versions of crucial packages
+      command: rpm -q podman crun conmon fuse-overlayfs flatpak-session-helper

playbooks/fedora-rawhide/test-with-podman-stable.yaml

@@ -0,0 +1,21 @@
+---
+- hosts: ci-node-rawhide
+  tasks:
+    - name: Build toolbox
+      command: meson builddir
+      args:
+        chdir: '{{ zuul.project.src_dir }}'
+
+    - name: Install toolbox
+      become: yes
+      command: ninja -C builddir install
+      args:
+        chdir: '{{ zuul.project.src_dir }}'
+
+    - name: Run system tests
+      command: bats ./test/system
+      environment:
+        PODMAN: '/usr/bin/podman'
+        TOOLBOX: './toolbox'
+      args:
+        chdir: '{{ zuul.project.src_dir }}'

playbooks/shellcheck.yaml

@@ -0,0 +1,21 @@
+---
+- hosts: all
+  tasks:
+    - name: Install requirements
+      become: yes
+      package:
+        name:
+          - golang-github-cpuguy83-go-md2man
+          - ninja-build
+          - meson
+          - ShellCheck
+
+    - name: Build
+      command: meson builddir
+      args:
+        chdir: '{{ zuul.project.src_dir }}'
+
+    - name: Test
+      command: ninja -C builddir test
+      args:
+        chdir: '{{ zuul.project.src_dir }}'