wait for docker to be ready

src/docker-in-docker/install.sh

@@ -385,7 +385,7 @@ dockerd_start="AZURE_DNS_AUTO_DETECTION=${AZURE_DNS_AUTO_DETECTION} DOCKER_DEFAU
 
     # Handle DNS
     set +e
-    cat /etc/resolv.conf | grep -i 'internal.cloudAAAapp.net' > /dev/null 2>&1
+    cat /etc/resolv.conf | grep -i 'internal.cloudapp.net' > /dev/null 2>&1
     if [ $? -eq 0 ] && [ "${AZURE_DNS_AUTO_DETECTION}" = "true" ]
     then
         CUSTOMDNS="--dns 168.63.129.16"
@@ -404,6 +404,20 @@ dockerd_start="AZURE_DNS_AUTO_DETECTION=${AZURE_DNS_AUTO_DETECTION} DOCKER_DEFAU
 
     # Start docker/moby engine
     ( dockerd $CUSTOMDNS $DEFAULT_ADDRESS_POOL > /tmp/dockerd.log 2>&1 ) &
+
+    # Wait for API to be listening on unix socket.
+    echo "Waiting for 'docker-in-docker' to be ready..."
+    COUNTER=0
+    while ! (cat /tmp/dockerd.log | grep 'API listen on /var/run/docker.sock') > /dev/null 2>&1; do
+        sleep 1
+        COUNTER=$((COUNTER+1))
+        if [ $COUNTER -gt 5 ]
+        then
+            echo "(!) 'docker-in-docker' did not initialize correctly."
+            exit 1
+        fi
+    done
+
     echo "'docker-in-docker' initialization complete."
 INNEREOF
 )"

test/docker-in-docker/javascript_node_major_version_1.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+set -e
+
+# Optional: Import test library
+source dev-container-features-test-lib
+
+./test.sh
+
+# Report result
+reportResults

test/docker-in-docker/scenarios.json

@@ -50,23 +50,29 @@
     },
     "docker_build_older": {
         "image": "mcr.microsoft.com/devcontainers/javascript-node:0-18",
+        "remoteUser": "node",
         "features": {
             "docker-in-docker": {
                 "version": "20",
                 "moby": "false",
                 "dockerDashComposeVersion": "v2"
             }
-        },
+        }
-        "remoteUser": "node"
     },
     "docker_build_no_compose": {
         "image": "mcr.microsoft.com/devcontainers/javascript-node:0-18",
+        "remoteUser": "node",
         "features": {
             "docker-in-docker": {
                 "dockerDashComposeVersion": "none"
             }
-        },
+        }
-        "remoteUser": "node"
+    },
+    "javascript_node_major_version_1": {
+        "image": "mcr.microsoft.com/devcontainers/javascript-node:1-18",
+        "remoteUser": "node",
+        "features": {
+            "docker-in-docker": {}
+        }
     }
-
 }