[local-preview] Fail if M1 Mac

Currently, If its a M1 Mac, The local preview instance just continues running as the failures are in k3s. We should instead fail earlier so that the user understands the problem. We already have a warning for the same in the documentation website, but having a check seems to be useful. Signed-off-by: Tarun Pothulapati <tarun@gitpod.io>

Author: Pothulapati

install/preview/entrypoint.sh

@@ -18,11 +18,17 @@ if [ "$1" != "logging" ]; then
  exit
 fi
 
+# fail if its arm64
+if [ "$(uname -m)" = 'arm64' ]; then
+ echo "Gitpod local preview does not work on arm64 CPU's (including M1 Mac's)"
+ exit 1
+fi
+
 # check for minimum requirements
 REQUIRED_MEM_KB=$((6 * 1024 * 1024))
 total_mem_kb=$(awk '/MemTotal:/ {print $2}' /proc/meminfo)
 if [ "${total_mem_kb}" -lt "${REQUIRED_MEM_KB}" ]; then
- echo "Preview installation of Gitpod requires a system with at least 6GB of memory"
+ echo "Gitpod local preview requires a system with at least 6GB of memory"
  exit 1
 else
  set -x
@@ -31,7 +37,7 @@ fi
 REQUIRED_CORES=4
 total_cores=$(nproc)
 if [ "${total_cores}" -lt "${REQUIRED_CORES}" ]; then
- echo "Preview installation of Gitpod requires a system with at least 4 CPU Cores"
+ echo "Gitpod local preview requires a system with at least 4 CPU Cores"
  exit 1
 fi