NAME

barman-cloud-wal-restore - Restore PostgreSQL WAL files from the Cloud using restore_command

SYNOPSIS

barman-cloud-wal-restore [OPTIONS] SOURCE_URL SERVER_NAME WAL_NAME WAL_PATH

DESCRIPTION

This script can be used as a restore_command to download WAL files previously archived with barman-cloud-wal-archive command. Currently AWS S3, Azure Blob Storage and Google Cloud Storage are supported.

This script and Barman are administration tools for disaster recovery of PostgreSQL servers written in Python and maintained by EnterpriseDB.

Usage

usage: barman-cloud-wal-restore [-V] [--help] [-v | -q] [-t]
                                [--cloud-provider {aws-s3,azure-blob-storage,google-cloud-storage}]
                                [--endpoint-url ENDPOINT_URL] [-P AWS_PROFILE]
                                [--profile AWS_PROFILE]
                                [--read-timeout READ_TIMEOUT]
                                [--azure-credential {azure-cli,managed-identity}]
                                source_url server_name wal_name wal_dest

This script can be used as a `restore_command` to download WAL files
previously archived with barman-cloud-wal-archive command. Currently AWS S3,
Azure Blob Storage and Google Cloud Storage are supported.

positional arguments:
  source_url            URL of the cloud source, such as a bucket in AWS S3.
                        For example: `s3://bucket/path/to/folder`.
  server_name           the name of the server as configured in Barman.
  wal_name              The value of the '%f' keyword (according to
                        'restore_command').
  wal_dest              The value of the '%p' keyword (according to
                        'restore_command').

optional arguments:
  -V, --version         show program's version number and exit
  --help                show this help message and exit
  -v, --verbose         increase output verbosity (e.g., -vv is more than -v)
  -q, --quiet           decrease output verbosity (e.g., -qq is less than -q)
  -t, --test            Test cloud connectivity and exit
  --cloud-provider {aws-s3,azure-blob-storage,google-cloud-storage}
                        The cloud provider to use as a storage backend

Extra options for the aws-s3 cloud provider:
  --endpoint-url ENDPOINT_URL
                        Override default S3 endpoint URL with the given one
  -P AWS_PROFILE, --aws-profile AWS_PROFILE
                        profile name (e.g. INI section in AWS credentials
                        file)
  --profile AWS_PROFILE
                        profile name (deprecated: replaced by --aws-profile)
  --read-timeout READ_TIMEOUT
                        the time in seconds until a timeout is raised when
                        waiting to read from a connection (defaults to 60
                        seconds)

Extra options for the azure-blob-storage cloud provider:
  --azure-credential {azure-cli,managed-identity}, --credential {azure-cli,managed-identity}
                        Optionally specify the type of credential to use when
                        authenticating with Azure. If omitted then Azure Blob
                        Storage credentials will be obtained from the
                        environment and the default Azure authentication flow
                        will be used for authenticating with all other Azure
                        services. If no credentials can be found in the
                        environment then the default Azure authentication flow
                        will also be used for Azure Blob Storage.

REFERENCES

For Boto:

https://boto3.amazonaws.com/v1/documentation/api/latest/guide/configuration.html

For AWS:

https://docs.aws.amazon.com/cli/latest/userguide/cli-chap-getting-set-up.html
https://docs.aws.amazon.com/cli/latest/userguide/cli-chap-getting-started.html.

For Azure Blob Storage:

https://docs.microsoft.com/en-us/azure/storage/blobs/authorize-data-operations-cli#set-environment-variables-for-authorization-parameters
https://docs.microsoft.com/en-us/python/api/azure-storage-blob/?view=azure-python

For Google Cloud Storage: * Credentials: https://cloud.google.com/docs/authentication/getting-started#setting_the_environment_variable

Only authentication with GOOGLE_APPLICATION_CREDENTIALS env is supported at the moment.

DEPENDENCIES

If using --cloud-provider=aws-s3:

boto3

If using --cloud-provider=azure-blob-storage:

azure-storage-blob
azure-identity (optional, if you wish to use DefaultAzureCredential)

If using --cloud-provider=google-cloud-storage * google-cloud-storage

EXIT STATUS

0: Success
1: The requested WAL could not be found
2: The connection to the cloud provider failed
3: There was an error in the command input
Other non-zero codes: Failure

BUGS

Barman has been extensively tested, and is currently being used in several production environments. However, we cannot exclude the presence of bugs.

Any bug can be reported via the GitHub issue tracker.

RESOURCES

Homepage: https://www.pgbarman.org/
Documentation: https://docs.pgbarman.org/
Professional support: https://www.enterprisedb.com/

COPYING

Barman is the property of EnterpriseDB UK Limited and its code is distributed under GNU General Public License v3.