Restic - 数据加密增量备份工具
Restic 是一款开源的数据加密备份工具，可以将数据以多快照形式加密备份到多种类型的存储后端。
Restic 推出没多久就被各大发行版官方软件仓库收录，可见它的设计实现是广受认可的。
环境变量
RESTIC_REPOSITORY Location of repository (replaces -r)
RESTIC_PASSWORD_FILE Location of password file (replaces --password-file)
RESTIC_PASSWORD The actual password for the repository
AWS_ACCESS_KEY_ID Amazon S3 access key ID
AWS_SECRET_ACCESS_KEY Amazon S3 secret access key
ST_AUTH Auth URL for keystone v1 authentication
ST_USER Username for keystone v1 authentication
ST_KEY Password for keystone v1 authentication
OS_AUTH_URL Auth URL for keystone authentication
OS_REGION_NAME Region name for keystone authentication
OS_USERNAME Username for keystone authentication
OS_PASSWORD Password for keystone authentication
OS_TENANT_ID Tenant ID for keystone v2 authentication
OS_TENANT_NAME Tenant name for keystone v2 authentication
OS_USER_DOMAIN_NAME User domain name for keystone authentication
OS_PROJECT_NAME Project name for keystone authentication
OS_PROJECT_DOMAIN_NAME PRoject domain name for keystone authentication
OS_STORAGE_URL Storage URL for token authentication
OS_AUTH_TOKEN Auth token for token authentication
B2_ACCOUNT_ID Account ID or applicationKeyId for Backblaze B2
B2_ACCOUNT_KEY Account Key or applicationKey for Backblaze B2
AZURE_ACCOUNT_NAME Account name for Azure
AZURE_ACCOUNT_KEY Account key for Azure
GOOGLE_PROJECT_ID Project ID for Google Cloud Storage
GOOGLE_APPLICATION_CREDENTIALS Application Credentials for Google Cloud Storage (e.g. $HOME/.config/gs-secret-restic-key.json)
RCLONE_BWLIMIT rclone bandwidth limit