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bootstrapConfig.go
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bootstrapConfig.go
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package truss
import (
"fmt"
"os"
"github.com/creasty/defaults"
"gopkg.in/yaml.v2"
)
// BootstrapConfig represetns a Bootstrap configuration
type BootstrapConfig struct {
TemplateSource struct {
Type string `default:"local"`
Local struct {
Directory string `default:"./bootstrap-templates"`
}
S3 struct {
Bucket string `default:"truss-cli-global-config"`
Region string `default:"us-east-2"`
Prefix string `default:"bootstrap-templates"`
Role string `default:"arn:aws:iam::127178877223:role/xacct/ops-admin"`
}
Git struct {
CloneURL string `default:"git@github.com:get-bridge/truss-cli.git" yaml:"clone_url"`
Directory string `default:"bootstrap-templates"`
CheckoutRef string `yaml:"checkout_ref"`
}
} `yaml:"templateSource"`
TrussDir string `default:"truss" yaml:"trussDir"`
Template string `default:"default"`
Params map[string]interface{}
}
// LoadBootstrapConfig loads a config from disk
func LoadBootstrapConfig(name string) (*BootstrapConfig, error) {
f, err := os.Open(name)
if err != nil {
return nil, err
}
defer f.Close()
c := &BootstrapConfig{}
defaults.Set(c)
if err := yaml.NewDecoder(f).Decode(c); err != nil {
return nil, err
}
return c, nil
}
// GetTemplateSource gets a TemplateSource from a configuration
func (c BootstrapConfig) GetTemplateSource() (t TemplateSource, err error) {
switch c.TemplateSource.Type {
case "local":
t = NewLocalTemplateSource(c.TemplateSource.Local.Directory)
return
case "s3":
t = NewS3TemplateSource(
c.TemplateSource.S3.Bucket,
c.TemplateSource.S3.Prefix,
c.TemplateSource.S3.Region,
c.TemplateSource.S3.Role,
)
return
case "git":
t, err = NewGitTemplateSource(
c.TemplateSource.Git.CloneURL,
c.TemplateSource.Git.Directory,
c.TemplateSource.Git.CheckoutRef,
)
return
}
return nil, fmt.Errorf("Invalid templateSource.type: %s", c.TemplateSource.Type)
}
// GetBootstrapper gets a Bootstrapper from a configuration
func (c BootstrapConfig) GetBootstrapper() (b *Bootstrapper, err error) {
ts, err := c.GetTemplateSource()
if err != nil {
return nil, err
}
return NewBootstrapper(ts, c.TrussDir, c.Template), nil
}