Add ubuntu 23.04 (lunar) support

The Ubuntu 23.04 docker image includes a user by default (ubuntu) which
overtakes the 1000 uid and so our user becomes 1001 which makes the user
directory unwritable. The solution as suggested in [1] was to remove
that user.

[1]: https://bugs.launchpad.net/cloud-images/+bug/2005129

Fixes #452

.circleci/config.yml

@@ -154,6 +154,33 @@ jobs:
           command: |
             poetry run make test
 
+  ci-ubuntu-lunar:
+    machine:
+      image: ubuntu-2004:202111-01
+    steps:
+      - checkout
+      - run: *install-podman
+
+      - run:
+          name: Prepare cache directory
+          command: |
+            sudo mkdir -p /caches
+            sudo chown -R $USER:$USER /caches
+      - run: *calculate-cache-key
+      - restore_cache: *restore-cache
+      - run: *copy-image
+
+      - run:
+          name: Prepare Dangerzone environment
+          command: |
+            ./dev_scripts/env.py --distro ubuntu --version 23.04 build-dev
+
+      - run:
+          name: Run CI tests
+          command: |
+            ./dev_scripts/env.py --distro ubuntu --version 23.04 run --dev \
+                bash -c 'cd dangerzone; poetry run make test'
+
   ci-ubuntu-kinetic:
     machine:
       image: ubuntu-2004:202111-01
@@ -403,6 +430,18 @@ jobs:
             ./dev_scripts/env.py --distro debian --version bullseye run --dev \
                 bash -c 'cd dangerzone; poetry run make test'
 
+  build-ubuntu-lunar:
+    docker:
+      - image: ubuntu:22.04
+    resource_class: medium+
+    steps:
+      - run: *install-dependencies-deb
+      - checkout
+      - run: *calculate-cache-key
+      - restore_cache: *restore-cache
+      - run: *copy-image
+      - run: *build-deb
+
   build-ubuntu-kinetic:
     docker:
       - image: ubuntu:22.10
@@ -510,6 +549,9 @@ workflows:
       - convert-test-docs:
           requires:
             - build-container-image
+      - ci-ubuntu-lunar:
+          requires:
+            - build-container-image
       - ci-ubuntu-kinetic:
           requires:
             - build-container-image
@@ -534,6 +576,9 @@ workflows:
       - ci-fedora-37:
           requires:
             - build-container-image
+      - build-ubuntu-lunar:
+          requires:
+            - build-container-image
       - build-ubuntu-kinetic:
           requires:
             - build-container-image

.github/workflows/ci.yml

@@ -92,6 +92,9 @@ jobs:
           - target: ubuntu-22.10
             distro: ubuntu
             version: "22.10"
+          - target: ubuntu-23.04
+            distro: ubuntu
+            version: "23.04"
           - target: debian-bullseye
             distro: debian
             version: bullseye

CHANGELOG.md

@@ -11,6 +11,7 @@ since 0.4.1, and this project adheres to [Semantic Versioning](https://semver.or
 
 - Platform support: Alpha integration with Qubes OS ([issue #411](https://github.com/freedomofpress/dangerzone/issues/411))
 - Platform support: Debian Trixie (13)
+- Platform support: Ubuntu 23.04 (Lunar Lobster)
 
 ### Removed
 

INSTALL.md

@@ -1,5 +1,6 @@
 Dangerzone is available for:
 
+- Ubuntu 23.04 (lunar)
 - Ubuntu 22.10 (kinetic)
 - Ubuntu 22.04 (jammy)
 - Ubuntu 20.04 (focal)

dev_scripts/env.py

@@ -70,6 +70,13 @@ RUN . /etc/os-release \
         | apt-key add -
 """
 
+# XXX: overcome the fact that ubuntu images (starting on 23.04) ship with the 'ubuntu'
+# user by default https://bugs.launchpad.net/cloud-images/+bug/2005129
+# Related issue https://github.com/freedomofpress/dangerzone/pull/461
+DOCKERFILE_UBUNTU_2304_REM_USER = r"""
+RUN touch /var/mail/ubuntu && chown ubuntu /var/mail/ubuntu && userdel -r ubuntu
+"""
+
 # FIXME: Do we really need the python3-venv packages?
 DOCKERFILE_BUILD_DEV_DEBIAN_DEPS = r"""
 ARG DEBIAN_FRONTEND=noninteractive
@@ -404,6 +411,10 @@ class Env:
             install_deps = (
                 DOCKERFILE_UBUNTU_2004_DEPS + DOCKERFILE_BUILD_DEV_DEBIAN_DEPS
             )
+        elif self.distro == "ubuntu" and self.version in ("23.04", "lunar"):
+            install_deps = (
+                DOCKERFILE_UBUNTU_2304_REM_USER + DOCKERFILE_BUILD_DEV_DEBIAN_DEPS
+            )
         else:
             install_deps = DOCKERFILE_BUILD_DEV_DEBIAN_DEPS
 
@@ -442,6 +453,10 @@ class Env:
                 install_deps = (
                     DOCKERFILE_UBUNTU_2004_DEPS + DOCKERFILE_BUILD_DEBIAN_DEPS
                 )
+            elif self.distro == "ubuntu" and self.version in ("23.04", "lunar"):
+                install_deps = (
+                    DOCKERFILE_UBUNTU_2304_REM_USER + DOCKERFILE_BUILD_DEV_DEBIAN_DEPS
+                )
             package = f"dangerzone_{version}-1_all.deb"
             package_src = git_root() / "deb_dist" / package
             package_dst = build_dir / package

dev_scripts/qa.py

@@ -798,6 +798,11 @@ class QAUbuntu2210(QADebianBased):
     VERSION = "22.10"
 
 
+class QAUbuntu2304(QADebianBased):
+    DISTRO = "ubuntu"
+    VERSION = "23.04"
+
+
 class QAFedora(QALinux):
     """Base class for Fedora distros.