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cacher.go
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cacher.go
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package compiler
import (
"path"
"strings"
"github.com/laszlocph/drone-oss-08/cncd/pipeline/pipeline/frontend/yaml"
libcompose "github.com/docker/libcompose/yaml"
)
// Cacher defines a compiler transform that can be used
// to implement default caching for a repository.
type Cacher interface {
Restore(repo, branch string, mounts []string) *yaml.Container
Rebuild(repo, branch string, mounts []string) *yaml.Container
}
type volumeCacher struct {
base string
}
func (c *volumeCacher) Restore(repo, branch string, mounts []string) *yaml.Container {
return &yaml.Container{
Name: "rebuild_cache",
Image: "plugins/volume-cache:1.0.0",
Vargs: map[string]interface{}{
"mount": mounts,
"path": "/cache",
"restore": true,
"file": strings.Replace(branch, "/", "_", -1) + ".tar",
"fallback_to": "master.tar",
},
Volumes: libcompose.Volumes{
Volumes: []*libcompose.Volume{
{
Source: path.Join(c.base, repo),
Destination: "/cache",
// TODO add access mode
},
},
},
}
}
func (c *volumeCacher) Rebuild(repo, branch string, mounts []string) *yaml.Container {
return &yaml.Container{
Name: "rebuild_cache",
Image: "plugins/volume-cache:1.0.0",
Vargs: map[string]interface{}{
"mount": mounts,
"path": "/cache",
"rebuild": true,
"flush": true,
"file": strings.Replace(branch, "/", "_", -1) + ".tar",
},
Volumes: libcompose.Volumes{
Volumes: []*libcompose.Volume{
{
Source: path.Join(c.base, repo),
Destination: "/cache",
// TODO add access mode
},
},
},
}
}
type s3Cacher struct {
bucket string
access string
secret string
region string
}
func (c *s3Cacher) Restore(repo, branch string, mounts []string) *yaml.Container {
return &yaml.Container{
Name: "rebuild_cache",
Image: "plugins/s3-cache:latest",
Vargs: map[string]interface{}{
"mount": mounts,
"access_key": c.access,
"secret_key": c.secret,
"bucket": c.bucket,
"region": c.region,
"rebuild": true,
},
}
}
func (c *s3Cacher) Rebuild(repo, branch string, mounts []string) *yaml.Container {
return &yaml.Container{
Name: "rebuild_cache",
Image: "plugins/s3-cache:latest",
Vargs: map[string]interface{}{
"mount": mounts,
"access_key": c.access,
"secret_key": c.secret,
"bucket": c.bucket,
"region": c.region,
"rebuild": true,
"flush": true,
},
}
}