Add workaround for rootless docker

Author: thespad

root/etc/s6-overlay/s6-rc.d/init-config-kasm/run

@@ -5,6 +5,9 @@ if [[ ! -d "/opt/docker" ]]; then
     mkdir -p /opt/docker
 fi
 
+# Workaround for running in a rootless docker environment
+sed -i '/set -e/d' /etc/init.d/docker
+
 # Login to Dockerhub
 if [[ -n "${DOCKER_HUB_USERNAME}" ]]; then
     docker login --username "${DOCKER_HUB_USERNAME}" --password "${DOCKER_HUB_PASSWORD}"