Edits history of script submission #5872 for ' Backup postgres database and send to S3 with rotation (postgresql)'

• bash

  Edit in Windmill

  Embed

  # shellcheck shell=bash
  
  # This script uses pg_dumpall to dump your database into a
  # single .sql file, gzip it and send to a S3 bucket. It also
  # performs backup rotation to keep at least n latest versions
  # of your choice.
  
  # AWS S3 bucket name
  bucket_name="${1}"
  
  # Bucket region
  region="${2}"
  
  # Prefix aka "directory", if you want to store backups in root,
  # leave a single slash
  prefix="${3:-postgres-backups/}"
  
  # Number of latest versions to keep. Older versions are removed
  # automatically. Set value to 0 to disable rotation.
  num_versions_to_keep="${4:-3}"
  
  # Custom file name, final format: `%Y%m%d%H%M%S-${your_filename}.sql.gz`
  filename="${5:-backup}"
  
  # The Windmill path to the postgres resource. This script expects
  # the resource to contains these fields: `host`, `password`, `port`, `user`.
  postgres_resource_path="${6:-u/admin/postgres}"
  
  # The Windmill path to the AWS access key resource. This script expects
  # the resource to contains these fields: `awsAccessKeyId`, `awsSecretAccessKey`.
  aws_resource_path="${7:-u/admin/aws-access-key}"
  
  prefix=$(echo "$prefix" | sed "s/^\///" ) # trim leading slash
  
  if [[ -z $(which pg_dumpall) ]]; then
    apt-get install -y postgresql-client
  fi
  
  if [[ -z $(which aws) ]]; then
    python -m pip install awscli
  fi
  
  postgres=$(curl -s -H "Authorization: Bearer $WM_TOKEN" \
    "$BASE_INTERNAL_URL/api/w/$WM_WORKSPACE/resources/get_value_interpolated/$postgres_resource_path")
  
  aws_creds=$(curl -s -H "Authorization: Bearer $WM_TOKEN" \
    "$BASE_INTERNAL_URL/api/w/$WM_WORKSPACE/resources/get_value_interpolated/$aws_resource_path")
  
  host=$(echo "$postgres" | jq -r .host)
  password=$(echo "$postgres" | jq -r .password)
  port=$(echo "$postgres" | jq -r .port)
  user=$(echo "$postgres" | jq -r .user)
  
  AWS_ACCESS_KEY_ID=$(echo "$aws_creds" | jq -r .awsAccessKeyId)
  AWS_SECRET_ACCESS_KEY=$(echo "$aws_creds" | jq -r .awsSecretAccessKey)
  
  export PGPASSWORD="$password"
  export AWS_ACCESS_KEY_ID="$AWS_ACCESS_KEY_ID"
  export AWS_SECRET_ACCESS_KEY="$AWS_SECRET_ACCESS_KEY"
  
  # 20231231173731
  now=$(date "+%Y%m%d%H%M%S")
  
  file_ext="sql.gz"
  
  echo "Backing up database and uploading to ${bucket_name}/${prefix}${now}-${filename}.${file_ext}"
  
  pg_dumpall -h "$host" -p "$port" -U "$user" \
    | gzip \
    | aws s3 cp - "s3://${bucket_name}/${prefix}${now}-${filename}.${file_ext}" --region ap-east-1
  
  if [ "$num_versions_to_keep" == "0" ]; then
    exit 0;
  fi
  
  # List all files in the backup directory
  files=$(aws s3api list-objects --region "$region" --bucket "$bucket_name" \
    --prefix "$prefix" \
    --query 'Contents[].{Key: Key}' \
    --output text)
  
  echo "Removing older versions (if any)..."
  
  echo "$files" \
    | grep -oP "^${prefix}[0-9]{14}-${filename}\.${file_ext}$" \
    | sort -r \
    | tail -n "+$((${num_versions_to_keep} + 1))" \
    | sed 's/\n/\\0/g' \
    | xargs --verbose -I {} aws s3 rm "s3://${bucket_name}/{}" --region "$region"
  
  echo "success"
  

  Submitted by hahuylonghai2012722 908 days ago