chore(testing): Changes to support running devcontainer based tests on Mac Silicon

.devcontainer/devcontainer.json

@@ -14,7 +14,8 @@
     ],
     "containerEnv": {
         "RUNNING_IN_DEV_CONTAINER": "1",
-        "ALLOW_VMWATCH_CGROUP_ASSIGNMENT_FAILURE": "1"
+        "ALLOW_VMWATCH_CGROUP_ASSIGNMENT_FAILURE": "1",
+        "DOCKER_DEFAULT_PLATFORM": "linux/amd64"
     },
 
     "customizations": {

integration-test/env/wait-for-enable

@@ -21,7 +21,11 @@ done
 sleep 1
 bin="bin/applicationhealth-extension"
 while true; do
-    out="$(ps aux)"
+    # get running processes removing sh which is the entry command and has a bunch of commands in it
+    # this allows the statements below to work in native linux and on mac silicon where rosetta will
+    # show up so the format of ps aux changes a bit and more restrictive regexes don't find the data
+    # removing the entrypoint command allows the regexes to be less restrictive.
+    out="$(ps aux | grep -v sh)"
     if [ $waitonstatus == "y" ]; then
         log "waiting on successful status"
         if grep -q 'success' /var/lib/waagent/Extension/status/0.status; then
@@ -39,7 +43,7 @@ while true; do
         if [[ "$1" != "webserverexit" ]]; then
             log "'$bin' process exited"
             exit 0
-        elif [[ "$out" != **"0 webserver -args="** ]]; then
+        elif [[ "$out" != **"webserver -args="** ]]; then
             log "webserver exited"
             exit 0
         fi 

integration-test/test/sequential/1_basic.bats

@@ -10,7 +10,7 @@ setup() {
 }
 
 @test "meta: can build the test container image" {
-    run build_docker_image
+    run build_docker_image_nocache
     echo "$output"
     [ "$status" -eq 0 ]
 }

integration-test/test/test_helper.bash

@@ -6,6 +6,13 @@ TEST_CONTAINER=test
 
 certs_dir="$BATS_TEST_DIRNAME/certs"
 
+# This function builds a Docker image for testing purposes, if it already doesn't exist.
+build_docker_image_nocache() {
+    # Check if the image already exists
+    echo "Building test image $IMAGE..."
+    docker build --no-cache -q -f $DOCKERFILE -t $IMAGE . 1>&2
+}
+
 # This function builds a Docker image for testing purposes, if it already doesn't exist.
 build_docker_image() {
     # Check if the image already exists
@@ -101,7 +108,7 @@ container_read_handler_log() {
 
 mk_certs() { # creates certs/{THUMBPRINT}.(crt|key) files under ./certs/ and prints THUMBPRINT
     set -eo pipefail
-    mkdir -p "$certs_dir" && cd "$certs_dir" && rm -f "$certs_dir/*"
+    mkdir -p "$certs_dir" && rm -f "$certs_dir/*" && cd "$certs_dir"
     openssl req -x509 -newkey rsa:2048 -keyout key.pem -out cert.pem -days 365 -nodes -batch &>/dev/null
     thumbprint=$(openssl x509 -in cert.pem -fingerprint -noout| sed 's/.*=//g' | sed 's/://g')
     mv cert.pem $thumbprint.crt && \