{"id":44,"date":"2016-08-13T06:09:20","date_gmt":"2016-08-13T06:09:20","guid":{"rendered":"https:\/\/www.tobanet.de\/s\/?p=44"},"modified":"2018-05-03T14:06:25","modified_gmt":"2018-05-03T14:06:25","slug":"mirror-bitbucket-server-git-repositories-to-gitolite","status":"publish","type":"post","link":"https:\/\/www.tobanet.de\/s\/2016\/08\/mirror-bitbucket-server-git-repositories-to-gitolite\/","title":{"rendered":"Mirror Bitbucket Server to gitolite"},"content":{"rendered":"<p>This is about how to mirror git repositories from <strong>Bitbucket<\/strong> Server to\u00a0<strong>gitolite<\/strong> (read only).<\/p>\n<p><strong>What&#8217;s the matter?<\/strong><br \/>\nThis setup can be tremendously helpful if your Bitbucket Server is not reachable from a node where you want to deploy code via git. Or you need some sort of redundancy.<br \/>\nIn this case gitolite has several advantages over another Bitbucket Server instance:<\/p>\n<ul>\n<li>super light weight<\/li>\n<li>therefor, a minimal footprint in terms of hardware resources<\/li>\n<li>easy to set up (if you know how)<\/li>\n<li>easy to maintain, very stable<\/li>\n<li>you don&#8217;t need a Bitbucket Data Center license<\/li>\n<\/ul>\n<p>What&#8217; required for this setup:<\/p>\n<ul>\n<li>a node with gitolite3 installed and setup. For this guide we assume the hostname is &#8216;gitolite&#8217;<\/li>\n<li>a node with Bitbucket Server installed and setup. We assume the hostname is &#8216;bitbucket&#8217;<\/li>\n<li>the Bitbucket Server plugin <a href=\"https:\/\/marketplace.atlassian.com\/plugins\/com.ngs.stash.externalhooks.external-hooks\/server\/overview\">&#8220;External Hooks&#8221;<\/a> (it is free), install as usual<\/li>\n<li>Bitbucket must be able to &#8220;talk to&#8221; gitolite via ssh (check your firewall)<\/li>\n<\/ul>\n<p>I won&#8217;t cover the installation and the basic setup of Bitbucket, just the steps needed to establish the mirror link between Bitbucket and gitolite.<!--more--><\/p>\n<h2>Prepare the sending side: Bitbucket Server<\/h2>\n<p><em>Bitbucket hosts the active git repository. Every change made here will be sent to gitolite.<\/em><\/p>\n<p>Because we are going to connect via ssh to gitolite, it is necessary to setup an ssh key pair for Bitbucket.<\/p>\n<pre class=\"lang:sh decode:true\"># login as root\r\n# create the home directory for atlbitbucket:\r\nmkdir -p \/home\/atlbitbucket\/.ssh\r\nchown -R atlbitbucket.atlbitbucket \/home\/atlbitbucket\r\n \r\n# become atlbitbucket\r\nsu - atlbitbucket -s \/bin\/bash\r\nssh-keygen -t rsa -C \"server-bitbucket `date +%Y-%m`\" -b 4096 -f ~\/.ssh\/server-bitbucket\r\nchmod 600 ~\/.ssh\/server-bitbucket<\/pre>\n<p>Next, tell Bitbucket how to connect to gitolite:<\/p>\n<pre class=\"lang:default decode:true \" title=\".ssh\/config\">host gitolite\r\n     user gitolite3\r\n     hostname gitolite.example.com\r\n     port 22\r\n     identityfile \/home\/atlbitbucket\/.ssh\/server-bitbucket<\/pre>\n<p>Test the connection from Bitbucket to gitolite:<\/p>\n<pre class=\"lang:sh decode:true \">ssh gitolite info\r\nhello server-bitbucket, this is gitolite3@gitolite running gitolite3 3.6.4-1~bpo70+1 (Debian) on git 2.1.4<\/pre>\n<p>Create the mirror2gitolite script and place it into the proper directory (<code>var\/atlassian\/application-data\/bitbucket\/external-hooks<\/code>)<\/p>\n<pre class=\"lang:sh decode:true\" title=\"\/var\/atlassian\/application-data\/bitbucket\/external-hooks\/mirror2gitolite\">#!\/bin\/bash\r\n\/usr\/bin\/git push --mirror gitolite:${STASH_REPO_NAME}<\/pre>\n<p>In Bitbucket, activate the external hook for the repo(s) you want to mirror:<\/p>\n<figure id=\"attachment_57\" aria-describedby=\"caption-attachment-57\" style=\"width: 685px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-57 size-full\" src=\"https:\/\/www.tobanet.de\/s\/wp-content\/uploads\/2016\/08\/post-receive-hook.png\" alt=\"Bitbucket post-receive-hook\" width=\"685\" height=\"539\" srcset=\"https:\/\/www.tobanet.de\/s\/wp-content\/uploads\/2016\/08\/post-receive-hook.png 685w, https:\/\/www.tobanet.de\/s\/wp-content\/uploads\/2016\/08\/post-receive-hook-300x236.png 300w, https:\/\/www.tobanet.de\/s\/wp-content\/uploads\/2016\/08\/post-receive-hook-343x270.png 343w\" sizes=\"auto, (max-width: 685px) 100vw, 685px\" \/><figcaption id=\"caption-attachment-57\" class=\"wp-caption-text\">Bitbucket post-receive-hook<\/figcaption><\/figure>\n<h2>Prepare the receiving side: gitolite<\/h2>\n<p><em>Gitolite shall be the read-only mirror. It will receive every change made to the Bitbucket Server git repository.<\/em><\/p>\n<p>It is necessary to enable the mirror functionality in gitolite. Login to your gitolite server node and edit <code>\/var\/lib\/gitolite3\/gitolite.rc<\/code>.<\/p>\n<pre class=\"lang:default decode:true\" title=\"gitolite.rc\">[...]\r\n\r\n    # List of commands and features to enable\r\n\r\n    ENABLE =&gt; [\r\n\r\n        # COMMANDS\r\n\r\n            # These are the commands enabled by default\r\n            'help',\r\n            'desc',\r\n            'info',\r\n            'perms',\r\n            'writable',\r\n\r\n            # Uncomment or add new commands here.\r\n            # 'create',\r\n            # 'fork',\r\n            'mirror',\r\n            # 'readme',\r\n            # 'sskm',\r\n            # 'D',\r\n[...]\r\n\r\n        # system admin stuff\r\n\r\n            # enable mirroring (don't forget to set the HOSTNAME too!)\r\n            'Mirroring',\r\n\r\n[...]<\/pre>\n<p>All the following steps will happen in your gitolite-admin repository on your workstation:<\/p>\n<p>Copy the <code>server-bitbucket.pub<\/code> ssh public key into you <code>keydir<\/code> directory.<\/p>\n<p>Now, edit <code>gitolite.conf<\/code> (in your gitolite-admin repository) to create and configure the git repository in gitolite<\/p>\n<pre class=\"lang:default decode:true\" title=\"gitolite.conf\">[...]\r\n\r\n# mirrored from Bitbucket\r\nrepo example-repo\r\n    R     = deploy\r\n    option mirror.master = bitbucket\r\n    option mirror.slaves = gitolite\r\n\r\n[...]<\/pre>\n<p>Commit and push your gitolite-admin repo.<\/p>\n<h2>Bring Bitbucket and gitolite together<\/h2>\n<p>Recap: what had to be done before:<\/p>\n<ul>\n<li>install the &#8220;External Hook&#8221; plugin for Bitbucket<\/li>\n<li>create the hook &#8220;mirror2gitolite&#8221; and activate it in your Bitbucket repository settings<\/li>\n<li>create a ssh key pair for Bitbucket: server-bitbucket<\/li>\n<li>enable mirroring in gitolite<\/li>\n<li>configure gitolite to accept connections from Bitbucket (ssh key pair server-bitbucket.pub) to our git repository<\/li>\n<\/ul>\n<p>The next step is to do the initial sync.<\/p>\n<p>If you want to initiate the first mirroring by hand, you can do like so:<\/p>\n<ol>\n<li>check where your git repository is located in the filesystem:\n<p><figure id=\"attachment_79\" aria-describedby=\"caption-attachment-79\" style=\"width: 685px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-79\" src=\"https:\/\/www.tobanet.de\/s\/wp-content\/uploads\/2016\/08\/repo-settings-1-300x170.png\" alt=\"Repository Details\" width=\"685\" height=\"389\" srcset=\"https:\/\/www.tobanet.de\/s\/wp-content\/uploads\/2016\/08\/repo-settings-1-300x170.png 300w, https:\/\/www.tobanet.de\/s\/wp-content\/uploads\/2016\/08\/repo-settings-1-768x436.png 768w, https:\/\/www.tobanet.de\/s\/wp-content\/uploads\/2016\/08\/repo-settings-1-1024x581.png 1024w, https:\/\/www.tobanet.de\/s\/wp-content\/uploads\/2016\/08\/repo-settings-1-476x270.png 476w, https:\/\/www.tobanet.de\/s\/wp-content\/uploads\/2016\/08\/repo-settings-1.png 1073w\" sizes=\"auto, (max-width: 685px) 100vw, 685px\" \/><figcaption id=\"caption-attachment-79\" class=\"wp-caption-text\">Repository Details<\/figcaption><\/figure><\/li>\n<li>make sure, the &#8220;External Hook&#8221; is activated for this repository in Bitbucket<\/li>\n<li>change into that directory and trigger the sync manually\n<pre class=\"lang:sh decode:true\"># become the atlassian user on bitbucket server\r\n# su - atlbitbucket -s \/bin\/bash \r\n# cd into the correct repo (check via repository details) \r\ncd \/var\/atlassian\/application-data\/bitbucket\/shared\/data\/repositories\/4711 \r\n\/usr\/bin\/git push --mirror gitolite:example-repo<\/pre>\n<p>If you don&#8217;t, the initial mirroring will occur with the first push to your Bitbucket Server repository.<\/li>\n<li>clone your repository from gitolite and check if everything is in sync<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>This is about how to mirror git repositories from Bitbucket Server to\u00a0gitolite (read only). What&#8217;s the matter? This setup can be tremendously helpful if your Bitbucket Server is not reachable from a node where you want to deploy code via git. Or you need some sort of redundancy. In this case gitolite has several advantages over another Bitbucket Server instance: super light weight therefor, a minimal footprint in terms of hardware resources easy to set up (if you know how)&#8230;<\/p>\n<p class=\"read-more\"><a class=\"btn btn-default\" href=\"https:\/\/www.tobanet.de\/s\/2016\/08\/mirror-bitbucket-server-git-repositories-to-gitolite\/\"> Read More<span class=\"screen-reader-text\">  Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[9,8],"class_list":["post-44","post","type-post","status-publish","format-standard","hentry","category-git","tag-bitbucket","tag-gitolite"],"_links":{"self":[{"href":"https:\/\/www.tobanet.de\/s\/wp-json\/wp\/v2\/posts\/44","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tobanet.de\/s\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tobanet.de\/s\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tobanet.de\/s\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tobanet.de\/s\/wp-json\/wp\/v2\/comments?post=44"}],"version-history":[{"count":3,"href":"https:\/\/www.tobanet.de\/s\/wp-json\/wp\/v2\/posts\/44\/revisions"}],"predecessor-version":[{"id":86,"href":"https:\/\/www.tobanet.de\/s\/wp-json\/wp\/v2\/posts\/44\/revisions\/86"}],"wp:attachment":[{"href":"https:\/\/www.tobanet.de\/s\/wp-json\/wp\/v2\/media?parent=44"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tobanet.de\/s\/wp-json\/wp\/v2\/categories?post=44"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tobanet.de\/s\/wp-json\/wp\/v2\/tags?post=44"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}