fix: azure-cli falls back to pip on unknown Ubuntu codenames (#1668)

* Initial plan

* fix: azure-cli falls back to pip on unknown codenames, add resolute support

- Add 'resolute' (Ubuntu 26.04) to AZCLI_ARCHIVE_VERSION_CODENAMES
- Add else branch to fall back to pip when codename/arch not in allowlist
- Bump feature version to 1.3.0
- Add test scenario for Ubuntu resolute

* test: add scenario for pip fallback on Ubuntu plucky (25.04)

Ubuntu plucky's codename is not in the apt archive allowlist, so this
scenario exercises the else-branch pip fallback path.

* Correcting the fallback test

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Kaniska <kaniska244@github.com>

Author: Copilot

src/azure-cli/devcontainer-feature.json

@@ -1,6 +1,6 @@
 {
   "id": "azure-cli",
-  "version": "1.2.9",
+  "version": "1.3.0",
   "name": "Azure CLI",
   "documentationURL": "https://github.com/devcontainers/features/tree/main/src/azure-cli",
   "description": "Installs the Azure CLI along with needed dependencies. Useful for base Dockerfiles that often are missing required install dependencies like gpg.",

src/azure-cli/install.sh

@@ -19,7 +19,7 @@ AZ_BICEPVERSION=${BICEPVERSION:-latest}
 INSTALL_USING_PYTHON=${INSTALLUSINGPYTHON:-false}
 MICROSOFT_GPG_KEYS_URI="https://packages.microsoft.com/keys/microsoft.asc"
 AZCLI_ARCHIVE_ARCHITECTURES="amd64 arm64"
-AZCLI_ARCHIVE_VERSION_CODENAMES="stretch bookworm buster bullseye bionic focal jammy noble trixie"
+AZCLI_ARCHIVE_VERSION_CODENAMES="stretch bookworm buster bullseye bionic focal jammy noble trixie resolute"
 
 if [ "$(id -u)" -ne 0 ]; then
     echo -e 'Script must be run as root. Use sudo, su, or add "USER root" to your Dockerfile before running this script.'
@@ -200,6 +200,9 @@ CACHED_AZURE_VERSION="${AZ_VERSION}" # In case we need to fallback to pip and th
 if [ "${INSTALL_USING_PYTHON}" != "true" ]; then
     if [[ "${AZCLI_ARCHIVE_ARCHITECTURES}" = *"${architecture}"* ]] && [[  "${AZCLI_ARCHIVE_VERSION_CODENAMES}" = *"${VERSION_CODENAME}"* ]]; then
         install_using_apt || use_pip="true"
+    else
+        echo "(*) Codename '${VERSION_CODENAME}' or architecture '${architecture}' not in apt archive list, falling back to pip installation."
+        use_pip="true"
     fi
 else
     use_pip="true"

test/azure-cli/install_fallback_pip_ubuntu_plucky.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -e
+
+# Import test library for `check` command
+source dev-container-features-test-lib
+
+# Ubuntu plucky (25.04) is NOT in the apt archive codename allowlist,
+# so this test validates the pip fallback path.
+check "version" az  --version
+
+# Report result
+reportResults

test/azure-cli/install_in_ubuntu_resolute.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+set -e
+
+# Import test library for `check` command
+source dev-container-features-test-lib
+
+# Check to make sure the user is vscode
+check "user is vscode" whoami | grep vscode
+
+check "version" az  --version
+
+# Report result
+reportResults

test/azure-cli/scenarios.json

@@ -1,4 +1,12 @@
 {
+  "install_fallback_pip_ubuntu_plucky": {
+    "image": "ubuntu:plucky",
+    "features": {
+      "azure-cli": {
+        "version": "latest"
+      }
+    }
+  },  
   "install_extensions_trixie": {
     "image": "mcr.microsoft.com/devcontainers/base:trixie",
     "user": "vscode",
@@ -102,5 +110,14 @@
         "moby": false
       }
     }
+  },
+  "install_in_ubuntu_resolute": {
+    "image": "mcr.microsoft.com/devcontainers/base:ubuntu",
+    "user": "vscode",
+    "features": {
+      "azure-cli": {
+        "version": "latest"
+      }
+    }
   }
 }