artifact docs

This commit is contained in:
Alex Dadgar 2016-03-15 21:02:38 -07:00
parent 4288d3b7d7
commit 4f02739ea3

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@ -268,6 +268,10 @@ The `task` object supports the following keys:
* `logs` - Logs allows configuring log rotation for the `stdout` and `stderr`
buffers of a Task. See the log rotation reference below for more details.
* `artifact` - Defines an artifact to be downloaded before the task is run. This
can be provided multiple times to define additional artifacts to download. See
the artifacts reference for more details.
### Resources
The `resources` object supports the following keys:
@ -405,6 +409,40 @@ In the above example we have asked Nomad to retain 3 rotated files for both
`stderr` and `stdout` and size of each file is 10MB. The minimum disk space that
would be required for the task would be 60MB.
### Artifact
Nomad downloads artifacts using
[`go-getter`](https://github.com/hashicorp/go-getter). The `go-getter` library
allows downloading of artifacts from various sources using a URL as the input
source. The key/value pairs given in the `options` block map directly to
parameters appended to the supplied `source` url. These are then used by
`go-getter` to appropriately download the artifact. `go-getter` also has a CLI
tool to validate its URL and can be used to check if the Nomad `artifact` is
valid.
Nomad allows downloading `http`, `https`, and `S3` artifacts. If these artifacts
are archives (zip, tar.gz, bz2, etc.), these will be unarchived before the task
is started.
The `artifact` object maps supports the following keys:
* `source` - The path to the artifact to download.
* `options` - The `options` block allows setting parameters for `go-getter`. An
example is given below:
```
options {
# Validate the downloaded artifact
checksum = "md5:c4aa853ad2215426eb7d70a21922e794"
# S3 options for downloading artifacts from S3
aws_access_key_id = "<id>"
aws_access_key_secret = "<secret>"
aws_access_token = "<token>"
}
```
## JSON Syntax
Job files can also be specified in JSON. The conversion is straightforward