felixalb/pvv-nixos-config
1
0
Fork 0
mirror of https://git.pvv.ntnu.no/Drift/pvv-nixos-config.git synced 2026-02-04 01:00:04 +01:00
Code Issues Projects Releases Wiki Activity

bicep/{postgres,mysql}: keep multiple backups, point at latest with symlink

Browse Source
This commit is contained in:
h7x4
2026-01-29 14:12:14 +09:00
parent bac53be707
commit 1d46fd1ec6
2 changed files with 24 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
hosts/bicep/services/mysql/backup.nix
View File

@@ -44,20 +44,22 @@ in
];
script = let
rotations = 1;
rotations = 2;
in ''
set -eo pipefail
set -euo pipefail
mysqldump --all-databases | zstd --compress -9 --rsyncable -o "/var/lib/mysql-backups/mysql-dump.sql.zst"
OUT_FILE="$STATE_DIRECTORY/mysql-dump-$(date --iso-8601).sql.zst"
mysqldump --all-databases | zstd --compress -9 --rsyncable -o "$OUT_FILE"
rm "$STATE_DIRECTORY/mysql-dump-latest.sql.zst" ||:
ln -s -T "$OUT_FILE" "$STATE_DIRECTORY/mysql-dump-latest.sql.zst"
while [ $(find -type f "$STATE_DIRECTORY" -printf '.' | wc -c) -gt ${toString rotations} ]; do
rm $(find "$STATE_DIRECTORY" -type f -printf '%T+ %p\n' | sort | head -n 1 | cut -d' ' -f2)
done
'';
# NOTE: keep multiple backups and symlink latest one once we have more disk again
# mysqldump --all-databases | zstd --compress -9 --rsyncable -o "${backupDir}/$(date --iso-8601)-dump.sql.zst"
# while [ $(ls -1 "${backupDir}" | wc -l) -gt ${toString rotations} ]; do
# rm $(find "${backupDir}" -type f -printf '%T+ %p\n' | sort | head -n 1 | cut -d' ' -f2)
# done
serviceConfig = {
Type = "oneshot";
User = "mysql";

20
hosts/bicep/services/postgresql/backup.nix
View File

@@ -45,18 +45,22 @@ in
];
script = let
rotations = 1;
rotations = 2;
in ''
set -eo pipefail
set -euo pipefail
pg_dumpall -U postgres | zstd --compress -9 --rsyncable -o "/var/lib//postgresql-backups/postgresql-dump.sql.zstd"
OUT_FILE="$STATE_DIRECTORY/postgresql-dump-$(date --iso-8601).sql.zst"
pg_dumpall -U postgres | zstd --compress -9 --rsyncable -o "$OUT_FILE"
rm "$STATE_DIRECTORY/postgresql-dump-latest.sql.zst" ||:
ln -s -T "$OUT_FILE" "$STATE_DIRECTORY/postgresql-dump-latest.sql.zst"
while [ $(find -type f "$STATE_DIRECTORY" -printf '.' | wc -c) -gt ${toString rotations} ]; do
rm $(find "$STATE_DIRECTORY" -type f -printf '%T+ %p\n' | sort | head -n 1 | cut -d' ' -f2)
done
'';
# pg_dumpall -U postgres | zstd --compress -9 --rsyncable -o "${backupDir}/$(date --iso-8601)-dump.sql.zst"
# while [ $(ls -1 "${backupDir}" | wc -l) -gt ${toString rotations} ]; do
# rm $(find "${backupDir}" -type f -printf '%T+ %p\n' | sort | head -n 1 | cut -d' ' -f2)
# done
serviceConfig = {
Type = "oneshot";
User = "postgres";