backup: update rsnapshot configuration

[richardlau]

The first commit updates the copy of rsnapshot.conf we have in this repository with what is currently deployed on the backup server, taken via:

ssh backup cat /opt/local/etc/rsnapshot.conf > rsnapshot.conf

(FWIW it looks like we no longer take mysql dumps from the benchmark machine -- I think this was part of #2485 with the de-chartering of the benchmarking WG (nodejs/TSC#955).)

The second commit is a proposed change (not yet made) to also backup /etc from both CI servers. This will include nginx and telegraf (for grafana) configuration. Currently the whole of /etc is around 7mb on each server. I've left the existing Jenkins backup where it is to not disturb the diffs to the existing backups since those are large. We would end up with a directory structure for each backup (e.g. under /backup/periodic/daily.0):

directory	backup of
ci.nodejs.org	existing /var/lib/jenkins from ci.nodejs.org
ci-release.nodejs.org	existing /var/lib/jenkins from ci-release.nodejs.org
etc/ci.nodejs.org	/etc from ci.nodejs.org
etc/ci-release.nodejs.org	/etc from ci-release.nodejs.org
etc/nodejs.org	/etc from (direct.)nodejs.org

cc @nodejs/build-infra

[jbergstroem]

LGTM

[rvagg]

can we add /etc/ off nodejs.org too? way more useful stuff going on in there than even the CI machines that we'd be sad to lose .. mostly we'd cross our fingers that we've kept ansible in sync if we had to restore that but I don't have great faith in that.

[richardlau]

Sure, that'd be /etc from direct.nodejs.org, right? I need to get a few hours sleep first but I'll add that later today. Something like:

backup root@direct.nodejs.org:/etc/ etc/nodejs.org/

(I'll sleep first because the file is tab sensitive so I'd rather do that in front of a proper computer with a proper editor rather than try to get it right on a tablet through the GitHub web interface.)

[richardlau]

Added a backup for /etc/ for direct.node.org.

[richardlau]

I've deployed the changes now and they took effect for the most recent backup.

before (previous backup)

[root@3a355104-c5d6-405f-863b-9ce5948ba77b ~]# ls -al /backup/periodic/daily.1/
total 130
drwxr-xr-x  6 root root    6 Apr 30 00:19 .
drwxr-xr-x 20 root root   20 May  1 00:32 ..
drwxr-xr-x 24 root root   81 Apr 29 06:52 ci-release.nodejs.org
drwxr-xr-x 25 root root  154 Apr 30 00:07 ci.nodejs.org
drwxr-xr-x  2 root root    4 Apr 30 00:19 iptables
drwxr-xr-x  9 root root 1956 Apr 29 06:43 www-logs
[root@3a355104-c5d6-405f-863b-9ce5948ba77b ~]#

after

[root@3a355104-c5d6-405f-863b-9ce5948ba77b ~]# ls -al /backup/periodic/daily.0/
total 131
drwxr-xr-x  7 root root    7 May  1 00:32 .
drwxr-xr-x 20 root root   20 May  1 00:32 ..
drwxr-xr-x 24 root root   81 Apr 30 06:04 ci-release.nodejs.org
drwxr-xr-x 25 root root  154 May  1 00:10 ci.nodejs.org
drwxr-xr-x  5 root root    5 May  1 00:31 etc
drwxr-xr-x  2 root root    4 May  1 00:32 iptables
drwxr-xr-x  9 root root 1957 Apr 30 06:45 www-logs
[root@3a355104-c5d6-405f-863b-9ce5948ba77b ~]# ls -al /backup/periodic/daily.0/etc/
total 28
drwxr-xr-x   5 root root   5 May  1 00:31 .
drwxr-xr-x   7 root root   7 May  1 00:32 ..
drwxr-xr-x  98 root root 190 Apr 29 06:46 ci-release.nodejs.org
drwxr-xr-x 108 root root 198 Apr 21 04:03 ci.nodejs.org
drwxr-xr-x 108 root root 204 Apr  8 05:17 nodejs.org
[root@3a355104-c5d6-405f-863b-9ce5948ba77b ~]# du -hs /backup/periodic/daily.0/etc/*
3.4M    /backup/periodic/daily.0/etc/ci-release.nodejs.org
3.9M    /backup/periodic/daily.0/etc/ci.nodejs.org
5.0M    /backup/periodic/daily.0/etc/nodejs.org
[root@3a355104-c5d6-405f-863b-9ce5948ba77b ~]#

[mhdawson]

LGTM