From: Tim Johnson <tijohnson@linuxfoundation.org>
Date: Fri, 21 Sep 2018 22:06:43 +0000 (-0700)
Subject: Github mirrors documentation
X-Git-Url: https://gerrit.linuxfoundation.org/infra/gitweb?a=commitdiff_plain;h=refs%2Fchanges%2F27%2F12727%2F13;p=releng%2Fdocs.git

Github mirrors documentation

Issue: RELENG-1114
Change-Id: Idb4f53dc1741a06ae34fc6ffde9d335d636868ff
Signed-off-by: Tim Johnson <tijohnson@linuxfoundation.org>
---

diff --git a/docs/infra/gerrit.rst b/docs/infra/gerrit.rst
new file mode 100644
index 0000000..a51de81
--- /dev/null
+++ b/docs/infra/gerrit.rst
@@ -0,0 +1,121 @@
+.. _lfreleng-infra-gerrit:
+
+######
+Gerrit
+######
+
+.. _gerrit-releng-home-overview:
+
+GitHub Replication Configuration
+================================
+
+Initial configuration (required once)
+-------------------------------------
+
+#. Hiera configuration:
+
+   .. code-block:: yaml
+
+      Gerrit::extra_configs:
+        replication_config:
+          config_file: '/opt/gerrit/etc/replication.config'
+          mode: '0644'
+          options:
+            'remote.github':
+              # ORG == the Org on GitHub
+              # ${name} is literal and should exist in that format
+              url: 'git@github.com/ORG/${name}.git'
+              push:
+                - '+refs/heads/*:refs/heads/*'
+                - '+refs/heads/*:refs/tags/*'
+              timeout: '5'
+              threads: '5'
+              authGroup: 'GitHub Replication'
+              remoteNameStyle: 'dash'
+
+#. If a $PROJECT-github account does not exist on GitHub, create it,
+   setup 2-factor authentication on the account, and add the recovery
+   tokens to LastPass. The email for the account should be to
+   collab-it+$PROJECT-github@linuxfoundation.org
+
+#. Copy the public SSH key for the 'gerrit' user into the GitHub account
+
+#. On the Gerrit Server do the following:
+
+   .. code-block:: bash
+
+      # create 'root' shell
+      sudo -i
+      # create 'gerrit' shell
+      sudo -iu gerrit
+      # Add the server key to gerrit's known_hosts file
+      ssh-keyscan -t rsa github.com >> ~/.ssh/known_hosts
+      # exit from 'gerrit' shell
+      exit
+      # restart Gerrit so that SSH changes are properly picked up
+      systemctl restart gerrit
+      # exit from 'root' shell
+      exit
+
+#. Add the account to the GitHub Organization as a Member
+
+#. Configure the Organization with the following options:
+
+   a. Members cannot create repositories
+   b. Members cannot delete or transfer repositories
+   c. Set the default repository permission to Read
+   d. Require 2FA (Two Factor Authentication) for everyone
+
+#. Create a Replication team in the organization and add the
+   $PROJECT-github account
+
+#. In Gerrit create a 'GitHub Replication' group that is empty
+
+#. Set the following ACL on the All-Projects repository
+
+   .. code-block:: none
+
+      refs/*
+        Read
+          DENY: GitHub Replication
+
+Repository replication setup (repeat for each repository)
+---------------------------------------------------------
+
+Perform the following in each repository mirrored from Gerrit
+
+#. Create the repository in the GitHub organization replacing any
+   occurrence of '/' with '-' as '/' is an illegal character for
+   GitHub repositories.
+
+#. Add the Replication Team to the repository with write privileges
+
+#. In Gerrit add the following ACL
+
+   .. code-block:: none
+
+      refs/*
+        Read
+          ALLOW: GitHub Replication
+
+#. Perform initial code drop
+
+   The initial code drop must be present before you enable Gerrit
+   replication for a repository.
+
+#. Enable repo replication
+
+   To enable replication for a single repo:
+
+   .. code-block:: none
+
+      ssh -p 29418 ${youruid}@${project_gerrit} replication start --wait --url ${repo_url}
+
+   To enable replication for more than one repo:
+
+   .. code-block:: none
+
+      ssh -p 29418 ${youruid}@${project_gerrit} replication start --all --wait
+
+#. Watch GitHub to see if the repo starts to replicate, if not
+   troubleshoot by looking at ~gerrit/logs/replication*
diff --git a/docs/infra/index.rst b/docs/infra/index.rst
index c0cb5a6..9c47d98 100644
--- a/docs/infra/index.rst
+++ b/docs/infra/index.rst
@@ -13,6 +13,7 @@ Infrastructure provided to projects.
    inventory
    escalation
    bootstrap
+   gerrit
    jenkins
    jira
    nexus