Add redis restart mechanism (#583)

Author: gamefiend

bin/ghe-restore

@@ -636,6 +636,25 @@ echo "sudo restart -q memcached 2>/dev/null || true" |
 ghe-ssh "$GHE_HOSTNAME" -- /bin/sh
 bm_end "$(basename $0) - Restarting memcached"
 
+# Restart redis before updating keys
+# It's possible that redis hcl is not rendered on an unconfigured system
+# so check first
+if $instance_configured; then
+  log_info "Getting redis status before restart..." 1>&3
+  echo "nomad status redis" |
+    ghe-ssh "$GHE_HOSTNAME" -- /bin/sh 1>&3
+  log_info "Restarting redis" 1>&3
+  echo "nomad stop redis" |
+    ghe-ssh "$GHE_HOSTNAME" -- /bin/sh 1>&3 2>&3
+  ghe-ssh "$GHE_HOSTNAME" -- "/usr/local/share/enterprise/ghe-nomad-jobs queue /etc/nomad-jobs/redis/redis.hcl" 1>&3 2>&3
+  if $? -gt 0; then 
+    log_error "Unable to restart redis"
+  fi
+  log_info "Getting redis status after restart..." 1>&3
+  echo "nomad status redis" |
+    ghe-ssh "$GHE_HOSTNAME" -- /bin/sh 1>&3
+fi
+
 # Prevent GitHub Connect jobs running before we've had a chance to reset
 # the configuration by setting the last run date to now.
 if ! $RESTORE_SETTINGS; then

test/bin/ghe-nomad-jobs

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+# Usage: ghe-nomad-jobs
+# Emulates the remote GitHub ghe-nomad-jobs command. Tests use this
+# to assert that the command was executed.
+set -e
+echo "$(basename $0)" "'$(cat)'" "OK"
+