From 85f0e8bf6a2d45e96aa123ed8d39f6ca0b837d6d Mon Sep 17 00:00:00 2001 From: "https://id.koumbit.net/anarcat" Date: Fri, 18 Apr 2014 13:54:36 -0400 Subject: [PATCH 1/1] clarify the step by step instructions in relation with the larger set of distributed options --- doc/tips/distributed_wikis.mdwn | 68 ++++++++++++++++----------------- 1 file changed, 34 insertions(+), 34 deletions(-) diff --git a/doc/tips/distributed_wikis.mdwn b/doc/tips/distributed_wikis.mdwn index d0396d9c6..2fd82700c 100644 --- a/doc/tips/distributed_wikis.mdwn +++ b/doc/tips/distributed_wikis.mdwn @@ -43,6 +43,8 @@ still need to push and pull from the same central bare git repo. The [[plugins/pinger]] plugin is used to ping the mirrors from the central server on edits. +Step by step setup instructions for this are detailed below. + ### Fully decentralised setup [[!img decentralized_wikis.svg size=400x]] @@ -50,35 +52,9 @@ server on edits. In this configuration, each wiki is fully independent and pushes its changes to other wikis using the [[plugins/contrib/gitpush]] plugin. -## a wiki mirror - -The simplest possibility is setting up a mirror. If a wiki exposes its git -repository and has the [[plugins/pinger]] plugin enabled, then anyone can -set up a mirror that will automatically be kept up-to-date with the origin -wiki. Just clone the git repo, configure ikiwiki to use it, enable the -[[plugins/pingee]] plugin in your configuration, and edit the origin wiki, -adding a ping directive for your mirror: - - \[[!ping from="http://thewiki.com/" - to="http://mymirror.com/ikiwiki.cgi?do=ping"]] - -The "from" parameter needs to be the url to the origin wiki. The "to" parameter -is the url to ping on your mirror. - -Now whenever the main wiki is edited, it will ping your mirror, which will -pull the changes from "origin" using git, and update itself. It could, in -turn ping another mirror, etc. - -And if someone edits a page on your mirror, it will "git push origin", -committing the changes back to the origin git repository, and updating the -origin mirror. Assuming you can push to that git repository. If you can't, -and you want a mirror, and not a branch, you should disable web edits on -your mirror. (You could also point the cgiurl for your mirror at the origin -wiki.) - -## branching a wiki +### branching a wiki -It follows that setting up a branch of a wiki is just like a mirror, except +It follows that setting up a branch of a wiki is just like the fully decentralised mirror above, except we don't want it to push changes back to the origin. The easy way to accomplish this is to clone the origin git repository using a readonly protocol (ie, "git://"). Then you can't push to it. @@ -92,7 +68,9 @@ interface. Not 100% sure as I've not gotten into this situation yet. --[[Joey]] -## Practical example +## Step by step setup instructions + +The first two ways of setting up ikiwiki are better described in [[setup]] or [[tips/Git_repository_and_web_server_on_different_hosts]]. The remainder of this page describes the latter two more complex distributed setups. Say you have a friend that has already configured a shiny ikiwiki site, and you want to help by creating a mirror. You still need to figure out how to install ikiwiki and everything, hopefully this section will help you with that. @@ -141,7 +119,7 @@ You should already be able to make a plain HTML rendering of the wiki: You will also need a webserver to serve the content in the `destdir` defined above. We assume you will configure a virtual host named `mirror.example.com`. Here are some examples on how to do those, see [[!iki setup]] and [[!iki tips/dot_cgi]] for complete documentation. -Note that this will also configure CGI so that people can edit the wiki. Note that this configuration may involve timeouts if the main site is down. +Note that this will also configure CGI so that people can edit the wiki. Note that this configuration may involve timeouts if the main site is down, as ikiwiki will attempt to push to the central git repository at every change. #### Apache configuration @@ -186,9 +164,31 @@ Make this writable: chmod a+w /tmp/fcgi.socket -### Read-only mirror: done! +### Enable the pinger functionality + +At this point, you need to enable the pinger functionality to make sure that changes on the central server propagate to your mirror. + +This assumes a central wiki that exposes its git +repository and has the [[plugins/pinger]] plugin enabled. Enable the +[[plugins/pingee]] plugin in your configuration, and edit the origin wiki, +adding a ping directive for your mirror: + + \[[!ping from="http://thewiki.com/" + to="http://mymirror.com/ikiwiki.cgi?do=ping"]] + +The "from" parameter needs to be the url to the origin wiki. The "to" parameter +is the url to ping on your mirror. This can be done basically in any page. -At this point, you are done! You can edit your own clone of the wiki, although your changes will not go back to the main site. However, you can always push or pull manually from the `repository` in `~user/source.git` to update the main site. +Now whenever the main wiki is edited, it will ping your mirror, which will +pull the changes from "origin" using git, and update itself. It could, in +turn ping another mirror, etc. + +And if someone edits a page on your mirror, it will "git push origin", +committing the changes back to the origin git repository, and updating the +origin mirror. Assuming you can push to that git repository. If you can't, +and you want a mirror, and not a branch, you should disable web edits on +your mirror. (You could also point the cgiurl for your mirror at the origin +wiki if you do not want to incur that overhead or do not want to, or can't, run a CGI.) ### Announcing the mirror @@ -199,7 +199,7 @@ Once your mirror works, you can also add it to the list of mirrors. You can ask The [[plugins/mirrorlist]] plugin of course needs to be enabled for this to work. -### Alternative configuration +### Fully decentralized configuration In the above configuration, the master git repository is still on the main site. If that site goes down, there will be delays when editing the wiki mirror. It could also simply fail because it will not be able to push the changes to the master git repo. An alternative is to setup a local bare repository that is synced with the master. @@ -220,7 +220,7 @@ The following entries will be different from the above setup file: git_wrapper: /home/user/source.git/hooks/post-commit git_test_receive_wrapper: /home/user/source.git/hooks/pre-receive -To do this, the mirror needs to push back to the master, again using the [[plugins/contrib/gitpush]] plugin: +To do this, the mirror needs to push back to the master, using the [[plugins/contrib/gitpush]] plugin: git_push_to: - git://wiki.example.com/ -- 2.44.0