Be more inclusive in insecure registry regex

The regex failed to match the INSECURE_REGISTRY string used in latest
atomic host image due to it expecting a whitespace after
--insecure-registry.

Change-Id: Ib8f288d844b4d94b0f6309bfd04bb05930d8c4c5

diff --git a/docker/firstboot/start_docker_agents.sh b/docker/firstboot/start_docker_agents.sh
index 65c4e6d..6862503 100644 (file)
--- a/docker/firstboot/start_docker_agents.sh
+++ b/docker/firstboot/start_docker_agents.sh
@@ -23,7 +23,7 @@ if [ $docker_namespace_is_registry ]; then
     # if namespace is used with local registry, trim all namespacing
     trim_var=$docker_registry
     registry_host="${trim_var%%/*}"
-    /bin/sed -i "s/# INSECURE_REGISTRY='--insecure-registry[ ]'/INSECURE_REGISTRY='--insecure-registry $registry_host'/g" /etc/sysconfig/docker
+    /bin/sed -i -r "s/^[# ]*INSECURE_REGISTRY *=.+$/INSECURE_REGISTRY='--insecure-registry $registry_host'/" /etc/sysconfig/docker
     /usr/bin/systemctl start --no-block docker.service
 fi