Plan for migration of code.gnucash.org to new VM?
geert.gnucash at kobaltwit.be
Thu Jan 19 16:41:40 EST 2017
For me Sunday afternoon is fine as well. Just keep in mind I'm a couple of
hours ahead of you, so don't make it too late...
Op woensdag 18 januari 2017 17:36:43 CET schreef Derek Atkins:
> tl;dr: I want to migrate code to the new VM. You'll need to reset your
> ssh known_hosts key. Let me know when would be a good time/date for
> you (I'm thinking Sunday afternoon).
> Long version:
> I've been working on building a new VM for code on the new server.
> I've done a preliminary copy of all the current data and I've been
> testing the various services to ensure they work. The only service I
> haven't actually tested yet is git. This move upgrades the server to
> Fedora 25, which includes mailman 2.1.21 (alas, not mailman 3). I also
> changed from sendmail to postfix as the MTA.
> If there are any particular new features you'd like in the new server,
> please let me know sooner rather than later.
> A few things to note about the new server:
> 1) I did not migrate trac. I will have the current database, but I'm
> not migrating any of the trac services since we don't use it.
> 2) I copied the SVN repo, but I am not enabling SVN access
> 3) I'm going to rename the IRC log files to YYYY/MM/DD.html, but I've
> put in a permanent redirect so the old names continue to work.
> 4) The SSH Host Keys are going to change. This means you will need to
> reset your known_hosts configurations. The new keys have the
> following fingerprints:
> 256 SHA256:NLWx77E0Yp4oBhNfRJ0d4dlqDr+8nTmVKhOScebgQlY no comment (ECDSA)
> 256 SHA256:p3phK2xtXAEKzLEG3qqBvL1WLwqgAqu/Nm5VaZdi9jc no comment (ED25519)
> 2048 SHA256:V6oRv7mpv/LLWK1wKUS3xzh7Cxs/YJuOQ//ftVEzuBQ no comment (RSA)
> 5) I need to find a good date/time for the migration. I've already
> copied MOST of the data so any downtime would be relatively short as
> it rsync's any changes over. The process would be:
> a) take old machine "offline" (change its IP address to a private
> address) and open up SSH a bit more
> b) migrate the data to the new server
> c) reconfigure the machine to take over code's IP address
> d) ensure all the services are running
> I expect this to take less than an hour, considering I *think* I've
> got it all configured right now.
> 6) As part of the migration from sendmail to postfix, I'll be losing any
> email that remains in the mail queue. I'm just not sure how to
> migrate a sendmail-queued message to a postfix-queued message.
> Google seems to think "get the old server to forward it to the new
> server" but I'm not sure I feel comfortable doing that. Perhaps I'll
> just shut off incoming email to the old server ~12-24 hours before I
> plan to migrate?
> 7) If there are any additional changes or reconfigurations you'd like to
> see in the new server, it would be nice to tell me sooner rather than
> SO.... Before I migrate, are there any specific tests you'd like me to
> perform? Any service changes you'd like to see? Also, when would be a
> good date/time to perform this migration? I'm thinking this Sunday
> afternoon US/EST.
> PS: I can tell already that I/O is MUCH faster on the new server! Yay!
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