DevAndTools/docker-postgres-backup-local
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Add support for latest backup symlink

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Pau RE
2024-05-21 17:25:06 +02:00
parent 2feedd14c0
commit 4d1f8604f6
5 changed files with 22 additions and 8 deletions
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.github/workflows/ci.yml
+3
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@@ -50,6 +50,7 @@ jobs:
POSTGRES_PASSFILE_STORE: "**None**" POSTGRES_PASSFILE_STORE: "**None**"
POSTGRES_CLUSTER: "FALSE" POSTGRES_CLUSTER: "FALSE"
BACKUP_SUFFIX: ".sql.gz" BACKUP_SUFFIX: ".sql.gz"
BACKUP_LATEST_TYPE: "symlink"
BACKUP_KEEP_DAYS: 7 BACKUP_KEEP_DAYS: 7
BACKUP_KEEP_WEEKS: 4 BACKUP_KEEP_WEEKS: 4
BACKUP_KEEP_MONTHS: 6 BACKUP_KEEP_MONTHS: 6
@@ -72,6 +73,7 @@ jobs:
POSTGRES_PORT: 5432 POSTGRES_PORT: 5432
POSTGRES_EXTRA_OPTS: "-Z0 -Fd" POSTGRES_EXTRA_OPTS: "-Z0 -Fd"
BACKUP_SUFFIX: "" BACKUP_SUFFIX: ""
BACKUP_LATEST_TYPE: "symlink"
BACKUP_DIR: ".data" BACKUP_DIR: ".data"
# Defaults # Defaults
POSTGRES_DB_FILE: "**None**" POSTGRES_DB_FILE: "**None**"
@@ -108,6 +110,7 @@ jobs:
POSTGRES_PASSWORD_FILE: "**None**" POSTGRES_PASSWORD_FILE: "**None**"
POSTGRES_PASSFILE_STORE: "**None**" POSTGRES_PASSFILE_STORE: "**None**"
BACKUP_SUFFIX: ".sql.gz" BACKUP_SUFFIX: ".sql.gz"
BACKUP_LATEST_TYPE: "symlink"
BACKUP_KEEP_DAYS: 7 BACKUP_KEEP_DAYS: 7
BACKUP_KEEP_WEEKS: 4 BACKUP_KEEP_WEEKS: 4
BACKUP_KEEP_MONTHS: 6 BACKUP_KEEP_MONTHS: 6
README.md
+1
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@@ -79,6 +79,7 @@ Most variables are the same as in the [official postgres image](https://hub.dock
| BACKUP_KEEP_WEEKS | Number of weekly backups to keep before removal. Defaults to `4`. | | BACKUP_KEEP_WEEKS | Number of weekly backups to keep before removal. Defaults to `4`. |
| BACKUP_KEEP_MONTHS | Number of monthly backups to keep before removal. Defaults to `6`. | | BACKUP_KEEP_MONTHS | Number of monthly backups to keep before removal. Defaults to `6`. |
| BACKUP_KEEP_MINS | Number of minutes for `last` folder backups to keep before removal. Defaults to `1440`. | | BACKUP_KEEP_MINS | Number of minutes for `last` folder backups to keep before removal. Defaults to `1440`. |
| BACKUP_LATEST_TYPE | Type of `latest` pointer (`symlink`,`hardlink`,`none`). Defaults to `symlink`. |
| HEALTHCHECK_PORT | Port listening for cron-schedule health check. Defaults to `8080`. | | HEALTHCHECK_PORT | Port listening for cron-schedule health check. Defaults to `8080`. |
| POSTGRES_DB | Comma or space separated list of postgres databases to backup. If POSTGRES_CLUSTER is set this refers to the database to connect to for dumping global objects and discovering what other databases should be dumped (typically is either `postgres` or `template1`). Required. | | POSTGRES_DB | Comma or space separated list of postgres databases to backup. If POSTGRES_CLUSTER is set this refers to the database to connect to for dumping global objects and discovering what other databases should be dumped (typically is either `postgres` or `template1`). Required. |
| POSTGRES_DB_FILE | Alternative to POSTGRES_DB, but with one database per line, for usage with docker secrets. | | POSTGRES_DB_FILE | Alternative to POSTGRES_DB, but with one database per line, for usage with docker secrets. |
alpine.Dockerfile
+1
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@@ -23,6 +23,7 @@ ENV POSTGRES_DB="**None**" \
SCHEDULE="@daily" \ SCHEDULE="@daily" \
BACKUP_DIR="/backups" \ BACKUP_DIR="/backups" \
BACKUP_SUFFIX=".sql.gz" \ BACKUP_SUFFIX=".sql.gz" \
BACKUP_LATEST_TYPE="symlink" \
BACKUP_KEEP_DAYS=7 \ BACKUP_KEEP_DAYS=7 \
BACKUP_KEEP_WEEKS=4 \ BACKUP_KEEP_WEEKS=4 \
BACKUP_KEEP_MONTHS=6 \ BACKUP_KEEP_MONTHS=6 \
backup.sh
+16 -8
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@@ -121,14 +121,22 @@ for DB in ${POSTGRES_DBS}; do
ln -vf "${FILE}" "${MFILE}" ln -vf "${FILE}" "${MFILE}"
fi fi
# Update latest symlinks # Update latest symlinks
echo "Point last backup file to this last backup..." LATEST_LN_ARG=""
ln -svf "${LAST_FILENAME}" "${BACKUP_DIR}/last/${DB}-latest${BACKUP_SUFFIX}" if [ "${BACKUP_LATEST_TYPE}" = "symlink" ]; then
echo "Point latest daily backup to this last backup..." LATEST_LN_ARG="-s"
ln -svf "${DAILY_FILENAME}" "${BACKUP_DIR}/daily/${DB}-latest${BACKUP_SUFFIX}" fi
echo "Point latest weekly backup to this last backup..." if [ "${BACKUP_LATEST_TYPE}" = "symlink" -o "${BACKUP_LATEST_TYPE}" = "hardlink" ]; then
ln -svf "${WEEKLY_FILENAME}" "${BACKUP_DIR}/weekly/${DB}-latest${BACKUP_SUFFIX}" echo "Point last backup file to this last backup..."
echo "Point latest monthly backup to this last backup..." ln "${LATEST_LN_ARG}" -vf "${LAST_FILENAME}" "${BACKUP_DIR}/last/${DB}-latest${BACKUP_SUFFIX}"
ln -svf "${MONTHY_FILENAME}" "${BACKUP_DIR}/monthly/${DB}-latest${BACKUP_SUFFIX}" echo "Point latest daily backup to this last backup..."
ln "${LATEST_LN_ARG}" -vf "${DAILY_FILENAME}" "${BACKUP_DIR}/daily/${DB}-latest${BACKUP_SUFFIX}"
echo "Point latest weekly backup to this last backup..."
ln "${LATEST_LN_ARG}" -vf "${WEEKLY_FILENAME}" "${BACKUP_DIR}/weekly/${DB}-latest${BACKUP_SUFFIX}"
echo "Point latest monthly backup to this last backup..."
ln "${LATEST_LN_ARG}" -vf "${MONTHY_FILENAME}" "${BACKUP_DIR}/monthly/${DB}-latest${BACKUP_SUFFIX}"
else # [ "${BACKUP_LATEST_TYPE}" = "none" ]
echo "Not updating lastest backup."
fi
#Clean old files #Clean old files
echo "Cleaning older files for ${DB} database from ${POSTGRES_HOST}..." echo "Cleaning older files for ${DB} database from ${POSTGRES_HOST}..."
find "${BACKUP_DIR}/last" -maxdepth 1 -mmin "+${KEEP_MINS}" -name "${DB}-*${BACKUP_SUFFIX}" -exec rm -rvf '{}' ';' find "${BACKUP_DIR}/last" -maxdepth 1 -mmin "+${KEEP_MINS}" -name "${DB}-*${BACKUP_SUFFIX}" -exec rm -rvf '{}' ';'
debian.Dockerfile
+1
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@@ -37,6 +37,7 @@ ENV POSTGRES_DB="**None**" \
SCHEDULE="@daily" \ SCHEDULE="@daily" \
BACKUP_DIR="/backups" \ BACKUP_DIR="/backups" \
BACKUP_SUFFIX=".sql.gz" \ BACKUP_SUFFIX=".sql.gz" \
BACKUP_LATEST_TYPE="symlink" \
BACKUP_KEEP_DAYS=7 \ BACKUP_KEEP_DAYS=7 \
BACKUP_KEEP_WEEKS=4 \ BACKUP_KEEP_WEEKS=4 \
BACKUP_KEEP_MONTHS=6 \ BACKUP_KEEP_MONTHS=6 \