From d1d11c46680ce1316231f0fc568728b60e203418 Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 17:55:49 +0000
Subject: [PATCH 01/17] Use .env file for backup configuration

---
 postgresql_backup/pg_backup.sh | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/postgresql_backup/pg_backup.sh b/postgresql_backup/pg_backup.sh
index e77646c..2c55f29 100644
--- a/postgresql_backup/pg_backup.sh
+++ b/postgresql_backup/pg_backup.sh
@@ -1,14 +1,15 @@
 #!/bin/bash
 
-# Configuration
-HOST="localhost"
-PORT="5432"
-USER="your_postgres_user"
-BACKUP_PATH="/path/to/backup/directory"
-DUMP_FORMAT="custom" # Set to "custom" for .dump or "sql" for plaintext SQL
-EXTENSION="dump" # Default extension
+# Load environment variables from .env file
+if [ -f .env ]; then
+  export $(grep -v '^#' .env | xargs)
+else
+  echo ".env file not found! Please create it with the necessary configuration."
+  exit 1
+fi
 
-# Adjust file extension based on dump format
+# Set file extension based on DUMP_FORMAT
+EXTENSION="dump" # Default extension for custom format
 if [[ "$DUMP_FORMAT" == "sql" ]]; then
   EXTENSION="sql.gz"
 fi
-- 
2.43.5


From b26c680e52d20b6f509a246343cc2d843e1d137a Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 17:57:19 +0000
Subject: [PATCH 02/17] .env.dist added

---
 postgresql_backup/.env.dist | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 postgresql_backup/.env.dist

diff --git a/postgresql_backup/.env.dist b/postgresql_backup/.env.dist
new file mode 100644
index 0000000..351d4a6
--- /dev/null
+++ b/postgresql_backup/.env.dist
@@ -0,0 +1,6 @@
+# Database configuration
+HOST="localhost"
+PORT="5432"
+USER="your_postgres_user"
+BACKUP_PATH="/path/to/backup/directory"
+DUMP_FORMAT="custom" # Use "custom" for .dump or "sql" for SQL compressed with Gzip
\ No newline at end of file
-- 
2.43.5


From a2b01d06858334f733b6a75501301fe587fa4b6a Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 17:59:12 +0000
Subject: [PATCH 03/17] Updating README.md on .env configurations

---
 README.md | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index ac502d4..af66fec 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,13 @@
 # scripts
 
-Random scripts for different tasks
\ No newline at end of file
+Random scripts for different tasks
+
+## Configuration
+
+If the script provides any configuration, make a copy of `.env.dist` file to `.env` and edit configuration there.
+
+```shell
+cd some_script
+cp .env.dist .env
+nano .env
+```
\ No newline at end of file
-- 
2.43.5


From aed0c982a8639a301b852528ad5dfdef3a30d0a2 Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 18:31:04 +0000
Subject: [PATCH 04/17] postgresql_backup. Allow multiple servers.

---
 postgresql_backup/pg_backup.sh | 74 +++++++++++++++++++++++-----------
 1 file changed, 51 insertions(+), 23 deletions(-)

diff --git a/postgresql_backup/pg_backup.sh b/postgresql_backup/pg_backup.sh
index 2c55f29..fae5843 100644
--- a/postgresql_backup/pg_backup.sh
+++ b/postgresql_backup/pg_backup.sh
@@ -8,32 +8,60 @@ else
   exit 1
 fi
 
-# Set file extension based on DUMP_FORMAT
-EXTENSION="dump" # Default extension for custom format
-if [[ "$DUMP_FORMAT" == "sql" ]]; then
-  EXTENSION="sql.gz"
+# Ensure BACKUP_PATH is set
+if [ -z "$BACKUP_PATH" ]; then
+  echo "BACKUP_PATH not set in .env file!"
+  exit 1
 fi
 
-# Create backup directory if it doesn't exist
-mkdir -p "$BACKUP_PATH"
+# Extract unique database prefixes (DB1, DB2, ...)
+DATABASE_PREFIXES=$(env | grep -o 'DB[0-9]*_' | sort -u)
 
-# Get a list of all databases, excluding template databases
-DATABASES=$(psql -h "$HOST" -p "$PORT" -U "$USER" -d postgres -t -c "SELECT datname FROM pg_database WHERE datistemplate = false;")
+# Loop through each database configuration prefix
+for PREFIX in $DATABASE_PREFIXES; do
+  HOST_VAR="${PREFIX}HOST"
+  PORT_VAR="${PREFIX}PORT"
+  USER_VAR="${PREFIX}USER"
+  FORMAT_VAR="${PREFIX}DUMP_FORMAT"
 
-# Loop over each database and create a backup
-for DB in $DATABASES; do
-  BACKUP_FILE="$BACKUP_PATH/$DB.$EXTENSION"
-  
-  if [[ "$DUMP_FORMAT" == "custom" ]]; then
-    # Create a compressed custom-format backup
-    pg_dump -h "$HOST" -p "$PORT" -U "$USER" -Fc "$DB" -f "$BACKUP_FILE"
-  elif [[ "$DUMP_FORMAT" == "sql" ]]; then
-    # Create a plain-text SQL backup and compress it with gzip
-    pg_dump -h "$HOST" -p "$PORT" -U "$USER" "$DB" | gzip > "$BACKUP_FILE"
-  else
-    echo "Invalid DUMP_FORMAT specified: $DUMP_FORMAT"
-    exit 1
+  HOST=${!HOST_VAR}
+  PORT=${!PORT_VAR}
+  USER=${!USER_VAR}
+  DUMP_FORMAT=${!FORMAT_VAR:-"custom"} # Default to "custom" if not set
+
+  if [ -z "$HOST" ] || [ -z "$PORT" ] || [ -z "$USER" ]; then
+    echo "Incomplete configuration for $PREFIX. Skipping..."
+    continue
   fi
 
-  echo "Backup for database '$DB' created at '$BACKUP_FILE'"
-done
\ No newline at end of file
+  # Create a directory for each server using host and port
+  SERVER_DIR="$BACKUP_PATH/${HOST}_${PORT}"
+  mkdir -p "$SERVER_DIR"
+
+  # Get a list of all databases for this server, excluding template databases
+  DATABASES=$(psql -h "$HOST" -p "$PORT" -U "$USER" -d postgres -t -c "SELECT datname FROM pg_database WHERE datistemplate = false;")
+
+  # Loop over each database and create a backup
+  for DB_NAME in $DATABASES; do
+    # Set file extension based on DUMP_FORMAT
+    EXTENSION="dump"
+    if [[ "$DUMP_FORMAT" == "sql" ]]; then
+      EXTENSION="sql.gz"
+    fi
+
+    # Set backup file path within the server-specific directory
+    BACKUP_FILE="$SERVER_DIR/$DB_NAME.$EXTENSION"
+
+    # Perform the backup based on the specified format
+    if [[ "$DUMP_FORMAT" == "custom" ]]; then
+      pg_dump -h "$HOST" -p "$PORT" -U "$USER" -Fc "$DB_NAME" -f "$BACKUP_FILE"
+    elif [[ "$DUMP_FORMAT" == "sql" ]]; then
+      pg_dump -h "$HOST" -p "$PORT" -U "$USER" "$DB_NAME" | gzip > "$BACKUP_FILE"
+    else
+      echo "Invalid DUMP_FORMAT for $PREFIX: $DUMP_FORMAT. Skipping..."
+      continue
+    fi
+
+    echo "Backup for database '$DB_NAME' created at '$BACKUP_FILE'"
+  done
+done
-- 
2.43.5


From eee99952480af4386b890e38411c8d2fb4c6ffd8 Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 18:40:00 +0000
Subject: [PATCH 05/17] postgresql_backup. Using highest available level of
 compression.

---
 postgresql_backup/pg_backup.sh | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/postgresql_backup/pg_backup.sh b/postgresql_backup/pg_backup.sh
index fae5843..221c0c2 100644
--- a/postgresql_backup/pg_backup.sh
+++ b/postgresql_backup/pg_backup.sh
@@ -54,9 +54,11 @@ for PREFIX in $DATABASE_PREFIXES; do
 
     # Perform the backup based on the specified format
     if [[ "$DUMP_FORMAT" == "custom" ]]; then
-      pg_dump -h "$HOST" -p "$PORT" -U "$USER" -Fc "$DB_NAME" -f "$BACKUP_FILE"
+      # Custom format and highest ZSTD compression level
+      pg_dump -h "$HOST" -p "$PORT" -U "$USER" -Fc --compress="zstd:21" "$DB_NAME" -f "$BACKUP_FILE"
     elif [[ "$DUMP_FORMAT" == "sql" ]]; then
-      pg_dump -h "$HOST" -p "$PORT" -U "$USER" "$DB_NAME" | gzip > "$BACKUP_FILE"
+      # Plain-text SQL backup compressed with gzip at high compression level
+      pg_dump -h "$HOST" -p "$PORT" -U "$USER" "$DB_NAME" | gzip -9 > "$BACKUP_FILE"
     else
       echo "Invalid DUMP_FORMAT for $PREFIX: $DUMP_FORMAT. Skipping..."
       continue
-- 
2.43.5


From 641ba068984c9f4d40831dd061b834e94647c6b7 Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 18:42:03 +0000
Subject: [PATCH 06/17] Adding .gitignore for .env files

---
 .gitignore | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 .gitignore

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..58322a0
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*/.env.dist
\ No newline at end of file
-- 
2.43.5


From 06961c72b50ee4a2ae1b11b6c0aa63566bf18b6f Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 18:45:55 +0000
Subject: [PATCH 07/17] .env.dist update

---
 postgresql_backup/.env.dist | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/postgresql_backup/.env.dist b/postgresql_backup/.env.dist
index 351d4a6..5a76b30 100644
--- a/postgresql_backup/.env.dist
+++ b/postgresql_backup/.env.dist
@@ -1,6 +1,19 @@
-# Database configuration
-HOST="localhost"
-PORT="5432"
-USER="your_postgres_user"
+# Backup path
 BACKUP_PATH="/path/to/backup/directory"
-DUMP_FORMAT="custom" # Use "custom" for .dump or "sql" for SQL compressed with Gzip
\ No newline at end of file
+
+# Servers configuration
+# Add as many as needed
+
+# Database 1 configuration
+DB1_HOST="localhost"
+DB1_PORT="5432"
+DB1_USER="user1"
+DB1_NAME="database1"
+DB1_DUMP_FORMAT="custom" # "custom" for .dump or "sql" for SQL compressed with Gzip
+
+# Database 2 configuration
+#DB2_HOST="remote_host"
+#DB2_PORT="5432"
+#DB2_USER="user2"
+#DB2_NAME="database2"
+#DB2_DUMP_FORMAT="sql"
-- 
2.43.5


From 66667dc10341b6bbc8e41841249b4a5e867fdb3a Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 18:51:38 +0000
Subject: [PATCH 08/17] postgresql_backup. Removing unnecessary variable from
 .env.dist

---
 postgresql_backup/.env.dist | 2 --
 1 file changed, 2 deletions(-)

diff --git a/postgresql_backup/.env.dist b/postgresql_backup/.env.dist
index 5a76b30..e5ec258 100644
--- a/postgresql_backup/.env.dist
+++ b/postgresql_backup/.env.dist
@@ -8,12 +8,10 @@ BACKUP_PATH="/path/to/backup/directory"
 DB1_HOST="localhost"
 DB1_PORT="5432"
 DB1_USER="user1"
-DB1_NAME="database1"
 DB1_DUMP_FORMAT="custom" # "custom" for .dump or "sql" for SQL compressed with Gzip
 
 # Database 2 configuration
 #DB2_HOST="remote_host"
 #DB2_PORT="5432"
 #DB2_USER="user2"
-#DB2_NAME="database2"
 #DB2_DUMP_FORMAT="sql"
-- 
2.43.5


From 89b50cc40f3dca8a396bd81f09587093591af510 Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 19:02:44 +0000
Subject: [PATCH 09/17] postgresql_backup. Adding README to mention .pgpass

---
 postgresql_backup/README.md | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 postgresql_backup/README.md

diff --git a/postgresql_backup/README.md b/postgresql_backup/README.md
new file mode 100644
index 0000000..e070ec2
--- /dev/null
+++ b/postgresql_backup/README.md
@@ -0,0 +1,17 @@
+# Usage
+
+## Authentication
+
+Do not forget to create and/or edit `~/.pgpass` file providing all needed passwords for each host:
+
+The format is the following:
+```csv
+hostname:port:database:username:password
+```
+
+Example
+
+```csv
+localhost:5432:*:postgres:pg_password_1
+localhost:5433:*:postgres:pg_password_2
+```
\ No newline at end of file
-- 
2.43.5


From 6498a3ab1d1f9bd1b4302ce911db4f6790781399 Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 19:09:08 +0000
Subject: [PATCH 10/17] postgresql_backup. code highlight in README.md

---
 postgresql_backup/README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/postgresql_backup/README.md b/postgresql_backup/README.md
index e070ec2..ddd3497 100644
--- a/postgresql_backup/README.md
+++ b/postgresql_backup/README.md
@@ -5,13 +5,13 @@
 Do not forget to create and/or edit `~/.pgpass` file providing all needed passwords for each host:
 
 The format is the following:
-```csv
+```properties
 hostname:port:database:username:password
 ```
 
 Example
 
-```csv
+```properties
 localhost:5432:*:postgres:pg_password_1
 localhost:5433:*:postgres:pg_password_2
 ```
\ No newline at end of file
-- 
2.43.5


From e5731a3529ae39dace87c6d506a00728cfd65d2d Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 19:20:13 +0000
Subject: [PATCH 11/17] postgresql_backup. Progress output and smart directory
 creation.

---
 postgresql_backup/pg_backup.sh | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/postgresql_backup/pg_backup.sh b/postgresql_backup/pg_backup.sh
index 221c0c2..2fdc607 100644
--- a/postgresql_backup/pg_backup.sh
+++ b/postgresql_backup/pg_backup.sh
@@ -34,15 +34,23 @@ for PREFIX in $DATABASE_PREFIXES; do
     continue
   fi
 
-  # Create a directory for each server using host and port
+  # Create a directory for each server using host and port, only if it doesn't exist
   SERVER_DIR="$BACKUP_PATH/${HOST}_${PORT}"
-  mkdir -p "$SERVER_DIR"
+  if [ ! -d "$SERVER_DIR" ]; then
+    echo "Creating backup directory: $SERVER_DIR"
+    mkdir -p "$SERVER_DIR"
+  else
+    echo "Backup directory $SERVER_DIR already exists, skipping creation."
+  fi
 
   # Get a list of all databases for this server, excluding template databases
+  echo "Fetching databases for $HOST:$PORT ..."
   DATABASES=$(psql -h "$HOST" -p "$PORT" -U "$USER" -d postgres -t -c "SELECT datname FROM pg_database WHERE datistemplate = false;")
 
   # Loop over each database and create a backup
   for DB_NAME in $DATABASES; do
+    echo "Starting backup for database '$DB_NAME' on $HOST:$PORT..."
+
     # Set file extension based on DUMP_FORMAT
     EXTENSION="dump"
     if [[ "$DUMP_FORMAT" == "sql" ]]; then
@@ -51,19 +59,22 @@ for PREFIX in $DATABASE_PREFIXES; do
 
     # Set backup file path within the server-specific directory
     BACKUP_FILE="$SERVER_DIR/$DB_NAME.$EXTENSION"
+    echo "Backup file: $BACKUP_FILE"
 
     # Perform the backup based on the specified format
     if [[ "$DUMP_FORMAT" == "custom" ]]; then
-      # Custom format and highest ZSTD compression level
+      echo "Performing custom format backup with zstd compression level 21..."
       pg_dump -h "$HOST" -p "$PORT" -U "$USER" -Fc --compress="zstd:21" "$DB_NAME" -f "$BACKUP_FILE"
     elif [[ "$DUMP_FORMAT" == "sql" ]]; then
-      # Plain-text SQL backup compressed with gzip at high compression level
+      echo "Performing SQL format backup with gzip compression..."
       pg_dump -h "$HOST" -p "$PORT" -U "$USER" "$DB_NAME" | gzip -9 > "$BACKUP_FILE"
     else
       echo "Invalid DUMP_FORMAT for $PREFIX: $DUMP_FORMAT. Skipping..."
       continue
     fi
 
-    echo "Backup for database '$DB_NAME' created at '$BACKUP_FILE'"
+    echo "Backup for database '$DB_NAME' on $HOST:$PORT completed successfully."
   done
 done
+
+echo "Backup process completed."
-- 
2.43.5


From f40839b9aea64022b3499d6b2a14df25b5595a1c Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 19:25:45 +0000
Subject: [PATCH 12/17] postgresql_backup. Moving comment to a new line in .env
 file for better import.

---
 postgresql_backup/.env.dist | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/postgresql_backup/.env.dist b/postgresql_backup/.env.dist
index e5ec258..d7a1aef 100644
--- a/postgresql_backup/.env.dist
+++ b/postgresql_backup/.env.dist
@@ -8,7 +8,8 @@ BACKUP_PATH="/path/to/backup/directory"
 DB1_HOST="localhost"
 DB1_PORT="5432"
 DB1_USER="user1"
-DB1_DUMP_FORMAT="custom" # "custom" for .dump or "sql" for SQL compressed with Gzip
+# "custom" for .dump or "sql" for SQL compressed with Gzip
+DB1_DUMP_FORMAT="custom"
 
 # Database 2 configuration
 #DB2_HOST="remote_host"
-- 
2.43.5


From 198285910af59b2f78a5ab361970836f6e2690f2 Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 19:32:00 +0000
Subject: [PATCH 13/17] postgresql_backup. Removing unnecessary output.

---
 postgresql_backup/pg_backup.sh | 2 --
 1 file changed, 2 deletions(-)

diff --git a/postgresql_backup/pg_backup.sh b/postgresql_backup/pg_backup.sh
index 2fdc607..5e6f668 100644
--- a/postgresql_backup/pg_backup.sh
+++ b/postgresql_backup/pg_backup.sh
@@ -63,10 +63,8 @@ for PREFIX in $DATABASE_PREFIXES; do
 
     # Perform the backup based on the specified format
     if [[ "$DUMP_FORMAT" == "custom" ]]; then
-      echo "Performing custom format backup with zstd compression level 21..."
       pg_dump -h "$HOST" -p "$PORT" -U "$USER" -Fc --compress="zstd:21" "$DB_NAME" -f "$BACKUP_FILE"
     elif [[ "$DUMP_FORMAT" == "sql" ]]; then
-      echo "Performing SQL format backup with gzip compression..."
       pg_dump -h "$HOST" -p "$PORT" -U "$USER" "$DB_NAME" | gzip -9 > "$BACKUP_FILE"
     else
       echo "Invalid DUMP_FORMAT for $PREFIX: $DUMP_FORMAT. Skipping..."
-- 
2.43.5


From a2f25f51a8a4a6092f1850132f091d741539e20b Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 19:46:33 +0000
Subject: [PATCH 14/17] postgresql_backup. Optimizing output.

---
 postgresql_backup/pg_backup.sh | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/postgresql_backup/pg_backup.sh b/postgresql_backup/pg_backup.sh
index 5e6f668..05e8a48 100644
--- a/postgresql_backup/pg_backup.sh
+++ b/postgresql_backup/pg_backup.sh
@@ -49,8 +49,6 @@ for PREFIX in $DATABASE_PREFIXES; do
 
   # Loop over each database and create a backup
   for DB_NAME in $DATABASES; do
-    echo "Starting backup for database '$DB_NAME' on $HOST:$PORT..."
-
     # Set file extension based on DUMP_FORMAT
     EXTENSION="dump"
     if [[ "$DUMP_FORMAT" == "sql" ]]; then
@@ -59,7 +57,8 @@ for PREFIX in $DATABASE_PREFIXES; do
 
     # Set backup file path within the server-specific directory
     BACKUP_FILE="$SERVER_DIR/$DB_NAME.$EXTENSION"
-    echo "Backup file: $BACKUP_FILE"
+    
+    echo "Dumping '$DB_NAME' on $HOST:$PORT to $BACKUP_FILE"
 
     # Perform the backup based on the specified format
     if [[ "$DUMP_FORMAT" == "custom" ]]; then
@@ -71,7 +70,7 @@ for PREFIX in $DATABASE_PREFIXES; do
       continue
     fi
 
-    echo "Backup for database '$DB_NAME' on $HOST:$PORT completed successfully."
+    du -sh $BACKUP_FILE
   done
 done
 
-- 
2.43.5


From 34c2a222a3dc3c729f388a7cdd9513626979c2ce Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 20:04:19 +0000
Subject: [PATCH 15/17] postgresql_backup. Configurable ZSTD and GZip levels.

---
 postgresql_backup/pg_backup.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/postgresql_backup/pg_backup.sh b/postgresql_backup/pg_backup.sh
index 05e8a48..8c2e6d7 100644
--- a/postgresql_backup/pg_backup.sh
+++ b/postgresql_backup/pg_backup.sh
@@ -57,14 +57,14 @@ for PREFIX in $DATABASE_PREFIXES; do
 
     # Set backup file path within the server-specific directory
     BACKUP_FILE="$SERVER_DIR/$DB_NAME.$EXTENSION"
-    
+
     echo "Dumping '$DB_NAME' on $HOST:$PORT to $BACKUP_FILE"
 
     # Perform the backup based on the specified format
     if [[ "$DUMP_FORMAT" == "custom" ]]; then
-      pg_dump -h "$HOST" -p "$PORT" -U "$USER" -Fc --compress="zstd:21" "$DB_NAME" -f "$BACKUP_FILE"
+      pg_dump -h "$HOST" -p "$PORT" -U "$USER" -Fc --compress="zstd:$ZSTD_LEVEL" "$DB_NAME" -f "$BACKUP_FILE"
     elif [[ "$DUMP_FORMAT" == "sql" ]]; then
-      pg_dump -h "$HOST" -p "$PORT" -U "$USER" "$DB_NAME" | gzip -9 > "$BACKUP_FILE"
+      pg_dump -h "$HOST" -p "$PORT" -U "$USER" "$DB_NAME" | gzip -$GZIP_LEVEL > "$BACKUP_FILE"
     else
       echo "Invalid DUMP_FORMAT for $PREFIX: $DUMP_FORMAT. Skipping..."
       continue
-- 
2.43.5


From f2dff8632f586b4cca18280aa787ac9ec1f88ec6 Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 20:05:21 +0000
Subject: [PATCH 16/17] postgresql_backup. Adding compression configuration to
 .env.dist

---
 postgresql_backup/.env.dist | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/postgresql_backup/.env.dist b/postgresql_backup/.env.dist
index d7a1aef..1d170f8 100644
--- a/postgresql_backup/.env.dist
+++ b/postgresql_backup/.env.dist
@@ -1,6 +1,10 @@
 # Backup path
 BACKUP_PATH="/path/to/backup/directory"
 
+# Compression levels
+ZSTD_LEVEL=5
+GZIP_LEVEL=7
+
 # Servers configuration
 # Add as many as needed
 
-- 
2.43.5


From c4ed18059252585ccdcd7aa21f911765f2f56c39 Mon Sep 17 00:00:00 2001
From: skobkin <skobkin@proton.me>
Date: Wed, 6 Nov 2024 20:33:37 +0000
Subject: [PATCH 17/17] postgresql_backup. Systemd configuration.

---
 postgresql_backup/README.md | 40 +++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/postgresql_backup/README.md b/postgresql_backup/README.md
index ddd3497..72d4e66 100644
--- a/postgresql_backup/README.md
+++ b/postgresql_backup/README.md
@@ -14,4 +14,44 @@ Example
 ```properties
 localhost:5432:*:postgres:pg_password_1
 localhost:5433:*:postgres:pg_password_2
+```
+
+## Scheduling
+
+### Systemd
+
+#### Service
+
+`/etc/systemd/system/postgresql_backup.service`
+
+```ini
+[Unit]
+Description=PostgreSQL backup Script
+
+[Service]
+Type=oneshot
+WorkingDirectory=/root/scripts/postgresql_backup
+ExecStart=/root/scripts/postgresql_backup/pg_backup.sh
+```
+
+#### Timer
+
+`/etc/systemd/system/postgresql_backup.timer`
+
+```ini
+[Unit]
+Description=Run Backup Script Every Night
+
+[Timer]
+OnCalendar=*-*-* 22:00:00
+Unit=postgresql_backup.service
+
+[Install]
+WantedBy=timers.target
+```
+
+Then:
+
+```shell
+systemctl enable postgresql_backup.timer --now
 ```
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