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1 Commits

Author SHA1 Message Date
Tibor Vass 4a776d0ca7 builder: use buildkit's GC for build cache
This allows users to configure the buildkit GC.

The following enables the default GC:
```
{
  "builder": {
    "gc": {
      "enabled": true
    }
  }
}
```

The default GC policy has a simple config:
```
{
  "builder": {
    "gc": {
      "enabled": true,
      "defaultKeepStorage": "30GB"
    }
  }
}
```

A custom GC policy can be used instead by specifying a list of cache prune rules:
```
{
  "builder": {
    "gc": {
      "enabled": true,
      "policy": [
        {"keepStorage": "512MB", "filter": ["unused-for=1400h"]]},
        {"keepStorage": "30GB", "all": true}
      ]
    }
  }
}
```

Signed-off-by: Tibor Vass <tibor@docker.com>
2018-09-21 22:06:00 +00:00