@npm-wharf/cloud-archive
v2.0.2
Published
a library to handle backup to and restore from cloud vendor object stores (s3, gcs)
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cloud-archive
A module to help with the task of archiving data tarballed, gzipped data to an object store (GS or S3 now). Includes retrieval
Environment
Endpoints and connection configuration are set via environment variables:
OBJECT_STORE
- the object store where tasks and grafs are stored and retrieved fromFILE_NAME_FORMAT
- uses templating to specify a pattern for creating tarball names. Tokens are escaped with{{
}}
.- All dates and times for tokens are UTC
dateTime
- provides date and time:mm_dd_yy_HH_MM_SS
date
- provides date:mm_dd_yy
time
- provides time:HH_MM_SS
- All dates and times for tokens are UTC
FILE_PATTERNS
- a comma delimited list of glob patterns to tar when creating a backup. defaults to**/*
BASE_PATH
- defaults to the processes' pathDATA_PATH
- a subfolder off the base path, defaults toarchive
FILE_NAME
- a default archive name to use when restoring rather than finding the most recent. Useful in cases where you want to restore from a known archive.
AWS:
AWS_ACCESS_KEY_ID
AWS_SECRET_ACCESS_KEY
GS:
GS_PROJECT_ID
GS_USER_ID
GS_USER_KEY
Archive limitations:
DISCARD_AFTER
- how many days to keep archives for before removing themCOLDLINE_AFTER
- how many days before a file is moved to "cold storage" this is primarily offerred as a way to move unliked files into a cheaper tier of slower/low priority storage.
API
backupFrom([glob])
Backs up files from dataPath
and can selectively filter for files using the optional glob
argument.
Returns a promise that will resolve on success with the filename or reject with an error on failure.
restoreTo([fileName])
Download the latest (or optionally, a specific filename
) to dataPath
.
Returns a promise that will resolve on success with the full path and file listing or a reject with an error on failure.
On success, the resulting data structure looks like:
{
path: '/full/path/to/files',
files: [
'file1.txt',
'file2.txt',
'file3.txt',
'file4.txt'
]
}
TODO
- GS_USER_KEY expects PEM, not JSON key