Fix: common-utils configureZshAsDefaultShell option not working on alpine linux image (#557)feature_common-utils_2.0.11

* alpine defaultZsh fix

* common-utils: replace pam.d/chsh permission with `sufficient`

* common-utils: revert match auth sufficient

* common-utils: append auth string instead of replacing a whole file

* fix grep 2nd param

* fix: line checking condition

2 files changed, 24 insertions, 2 deletions

diff --git a/test/common-utils/alpine-base-zsh-default.sh b/test/common-utils/alpine-base-zsh-default.sh
new file mode 100644
index 0000000..9fc00a2
--- /dev/null
+++ b/test/common-utils/alpine-base-zsh-default.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -e
+
+# Optional: Import test library
+source dev-container-features-test-lib
+
+# Definition specific tests
+check "alpine default shell zsh" \
+  bash -c "getent passwd $(whoami) | awk -F : '{ print $7 }' | grep '/bin/zsh'"
+
+# Report result
+reportResults
diff --git a/test/common-utils/scenarios.json b/test/common-utils/scenarios.json
index 21cb940..9800242 100644
--- a/test/common-utils/scenarios.json
+++ b/test/common-utils/scenarios.json
@@ -143,6 +143,7 @@
         "build": {
             "dockerfile": "Dockerfile"
         },
+        "remoteUser": "vscode",
         "features": {
             "common-utils": {
                 "username": "vscode",
@@ -151,7 +152,15 @@
                 "upgradePackages": true,
                 "installZsh": true
             }
-        },
-        "remoteUser": "vscode"
+        }
+    },
+    "alpine-base-zsh-default": {
+        "image": "mcr.microsoft.com/devcontainers/base:alpine",
+        "remoteUser": "vscode",
+        "features": {
+            "common-utils": {
+                "configureZshAsDefaultShell": true
+            }
+        }
     }
 }