Merge branch 'clarify-pages-cron-disable' into 'master'

Clarify how to disable/enable Pages cronjob

See merge request gitlab-com/migration!155

.gitlab/issue_templates/failback.md

@@ -86,6 +86,7 @@ working order, including database replication between the two sites.
 1. [ ] ↩️ {+ Fail-back Handler +}: Set the GitLab shared runner timeout back to 3 hours
 1. [ ] ↩️ {+ Fail-back Handler +}: Restart automatic incremental GitLab Pages sync
     * Enable the cronjob on the **Azure** pages NFS server
+    * `sudo crontab -e` to get an editor window, uncomment the line involving rsync
 1. [ ] ↩️ {+ Fail-back Handler +}: Update GitLab shared runners to expire jobs after 3 hours
     * In a Rails console, run:
     * `Ci::Runner.instance_type.update_all(maximum_timeout: 10800)`

.gitlab/issue_templates/failover.md

@@ -156,6 +156,7 @@ an hour before the scheduled maintenance window.
     * Production: `bin/snapshot-dbs production`
 1. [ ] 🔪 {+ Chef-Runner +}: Stop automatic incremental GitLab Pages sync
     * Disable the cronjob on the **Azure** pages NFS server
+    * `sudo crontab -e` to get an editor window, comment out the line involving rsync
 1. [ ] 🔪 {+ Chef-Runner +}: Start parallelized, incremental GitLab Pages sync
     * Expected to take ~30 minutes, run in screen/tmux! On the **Azure** pages NFS server!
     * Updates to pages after now will be lost.