Created backup script

config/config.go

@@ -21,7 +21,7 @@ type Config struct {
 	ReadHeaderTimeout  time.Duration // Timeout for reading request headers in seconds
 	WriteTimeout       time.Duration // Timeout for writing requests in seconds
 	IdleTimeout        time.Duration // Timeout for idle connections in seconds
-	DBName             string        // Filename of the db (doesnt include file extension)
+	DBName             string        // Filename of the db - hardcoded and doubles as DB version
 	DBLockTimeout      time.Duration // Timeout for acquiring database lock
 	SecretKey          string        // Secret key for signing tokens
 	AccessTokenExpiry  int64         // Access token expiry in minutes
@@ -87,7 +87,7 @@ func GetConfig(args map[string]string) (*Config, error) {
 		ReadHeaderTimeout:  GetEnvDur("READ_HEADER_TIMEOUT", 2),
 		WriteTimeout:       GetEnvDur("WRITE_TIMEOUT", 10),
 		IdleTimeout:        GetEnvDur("IDLE_TIMEOUT", 120),
-		DBName:             GetEnvDefault("DB_NAME", "projectreshoot"),
+		DBName:             "0.1.0",
 		DBLockTimeout:      GetEnvDur("DB_LOCK_TIMEOUT", 60),
 		SecretKey:          os.Getenv("SECRET_KEY"),
 		AccessTokenExpiry:  GetEnvInt64("ACCESS_TOKEN_EXPIRY", 5),

deploy/backup.sh

@@ -0,0 +1,108 @@
+#!/bin/bash
+
+# Exit on error
+set -e
+
+if [[ -z "$1" ]]; then
+    echo "Usage: $0 <environment>"
+    exit 1
+fi
+
+ENVR="$1"
+if [[ "$ENVR" != "production" && "$ENVR" != "staging" ]]; then
+    echo "Error: environment must be 'production' or 'staging'."
+    exit 1
+fi
+ACTIVE_DIR="/home/deploy/$ENVR"
+DATA_DIR="/home/deploy/data/$ENVR"
+BACKUP_DIR="/home/deploy/data/backups/$ENVR"
+if [[ "$ENVR" == "production" ]]; then
+    SERVICE_NAME="projectreshoot"
+    declare -a PORTS=("3000" "3001" "3002")
+else
+    SERVICE_NAME="$ENVR.projectreshoot"
+    declare -a PORTS=("3005" "3006" "3007")
+fi
+
+# Send SIGUSR2 to release maintenance mode
+release_maintenance() {
+    echo "Releasing maintenance mode..."
+    for PORT in "${PORTS[@]}"; do
+        sudo systemctl kill -s SIGUSR2 "$SERVICE_NAME@$PORT.service"
+    done
+}
+
+shopt -s nullglob
+DB_FILES=("$ACTIVE_DIR"/*.db)
+DB_COUNT=${#DB_FILES[@]}
+
+if [[ $DB_COUNT -gt 1 ]]; then
+    echo "Error: More than one .db file found in $ACTIVE_DIR. Manual intervention required."
+    exit 1
+elif [[ $DB_COUNT -eq 0 ]]; then
+    echo "Error: No .db file found in $ACTIVE_DIR."
+    exit 1
+fi
+
+# Extract the filename without extension
+DB_FILE="${DB_FILES[0]}"
+DB_VER=$(basename "$DB_FILE" .db)
+
+# Send SIGUSR1 to trigger maintenance mode
+for PORT in "${PORTS[@]}"; do
+    sudo systemctl kill -s SIGUSR1 "$SERVICE_NAME@$PORT.service"
+done
+trap release_maintenance EXIT
+
+# Function to check logs for success or failure
+check_logs() {
+    local port="$1"
+    local service="$SERVICE_NAME@$port.service"
+
+    echo "Waiting for $service to enter maintenance mode..."
+
+    # Check the last few lines first in case the message already appeared
+    if sudo journalctl -u "$service" -n 20 --no-pager | grep -q "Global database lock acquired"; then
+        echo "$service successfully entered maintenance mode."
+        return 0
+    elif sudo journalctl -u "$service" -n 20 --no-pager | grep -q "Timeout: Global database lock abandoned"; then
+        echo "Error: $service failed to enter maintenance mode."
+        return 1
+    fi
+
+    # If not found, continuously watch logs until we get a success or failure message
+    sudo journalctl -u "$service" -f --no-pager | while read -r line; do
+        if echo "$line" | grep -q "Global database lock acquired"; then
+            echo "$service successfully entered maintenance mode."
+            pkill -P $$ journalctl  # Kill journalctl process once we have success
+            return 0
+        elif echo "$line" | grep -q "Timeout: Global database lock abandoned"; then
+            echo "Error: $service failed to enter maintenance mode."
+            pkill -P $$ journalctl  # Kill journalctl process on failure
+            return 1
+        fi
+    done
+}
+
+# Check logs for each service
+for PORT in "${PORTS[@]}"; do
+    check_logs "$PORT"
+done
+
+# Get current datetime in YYYY-MM-DD-HHMM format
+TIMESTAMP=$(date +"%Y-%m-%d-%H%M")
+
+# Define source and destination paths
+SOURCE_DB="$DATA_DIR/$DB_VER.db"
+BACKUP_DB="$BACKUP_DIR/${DB_VER}-${TIMESTAMP}.db"
+
+# Copy the database file
+if [[ -f "$SOURCE_DB" ]]; then
+    cp "$SOURCE_DB" "$BACKUP_DB"
+    echo "Backup created: $BACKUP_DB"
+else
+    echo "Error: Source database file $SOURCE_DB not found."
+    exit 1
+fi
+
+