additional lint/script fixes

Author: andfasano

data/data/agent/files/usr/local/bin/add-node.sh

@@ -38,11 +38,10 @@ printf '\nHost %s is ready for installation\n' "${HOST_ID}" 1>&2
 clear_issue "${status_issue}"
 
 # Add the current host to the cluster
-res=$(curl -X POST -s -S "${BASE_URL}/infra-envs/${INFRA_ENV_ID}/hosts/${HOST_ID}/actions/install")
-code=$(echo "$res" | jq -r '.code')
-message=$(echo "$res" | jq -r '.message')
-if [[ $res = "200" ]]; then 
-    printf "\nHost installation started\n" 1>&2
+res=$(curl -X POST -s -S -w "%{http_code}\\n" -o /dev/null "${BASE_URL}/infra-envs/${INFRA_ENV_ID}/hosts/${HOST_ID}/actions/install")
+if [[ $res = "202" ]]; then 
+    printf '\nHost installation started\n' 1>&2
 else
-    printf '\nHost installation failed: %s\n' "${message}" 1>&2
+    printf '\nHost installation failed\n' 1>&2
+    exit 1
 fi

pkg/asset/agent/image/releaseextract.go

@@ -61,7 +61,7 @@ type release struct {
 	streamGetter CoreOSBuildFetcher
 }
 
-// NewRelease is used to set up the executor to run oc commands
+// NewRelease is used to set up the executor to run oc commands.
 func NewRelease(config Config, releaseImage string, pullSecret string, mirrorConfig []mirror.RegistriesConfig, streamGetter CoreOSBuildFetcher) Release {
 	return &release{
 		config:       config,
@@ -259,7 +259,7 @@ func (r *release) extractFileFromImage(image, file, cacheDir string, architectur
 	return matches, nil
 }
 
-// Get hash from rhcos.json
+// Get hash from rhcos.json.
 func (r *release) getHashFromInstaller(architecture string) (bool, string) {
 	// Get hash from metadata in the installer
 	ctx, cancel := context.WithTimeout(context.TODO(), 30*time.Second)