Improve regexp to use \s (space).

This would not trip over tabs.

Sidenote: Real YAML parsing would be a lot safer, but would require
a package like shyaml or yq which both tend to be not installed and
an additional burden.

Signed-off-by: Kurt Garloff <kurt@garloff.de>

Author: garloff

04-cloud-secret.sh

@@ -20,7 +20,7 @@ kubectl create namespace "$CS_NAMESPACE" || true
 # - The cloud should be called openstack
 # - We will detect a cacert in there and pass it to the helper chart
 if ! test -r "$CLOUDS_YAML"; then echo "clouds.yaml $CLOUDS_YAML not readable"; exit 2; fi
-CA=$(grep -A12 "^  *$OS_CLOUD: *$" $CLOUDS_YAML | grep 'cacert:' | head -n1 | sed 's/^ *cacert: //')
+CA=$(grep -A12 "^\s\s*$OS_CLOUD: *$" $CLOUDS_YAML | grep 'cacert:' | head -n1 | sed 's/^ *cacert: //')
 OS_CACERT=${OS_CACERT:-$CA}
 if test -n "$OS_CACERT"; then
 	echo "Found CA cert file configured to be $OS_CACERT"