grim/convey

closing merged branch
hostnames
2017-10-13, Gary Kramlich
33eae19fcbbe
closing merged branch
/*
* Convey
* Copyright 2016-2017 Gary Kramlich <grim@reaperworld.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package docker
import (
"io/ioutil"
"os"
"path/filepath"
"github.com/aphistic/gomol"
"bitbucket.org/rw_grim/convey/environment"
"bitbucket.org/rw_grim/convey/state"
"bitbucket.org/rw_grim/convey/tasks"
"bitbucket.org/rw_grim/convey/yaml"
)
type Build struct {
Dockerfile string `yaml:"dockerfile"`
Files yaml.StringOrSlice `yaml:"files"`
Tag string `yaml:"tag"`
Tags yaml.StringOrSlice `yaml:"tags"`
Labels yaml.StringOrSlice `yaml:"labels"`
Arguments yaml.StringOrSlice `yaml:"arguments"`
}
const buildTemplate = `build
-f {{.dockerfile}}
{{range .Tags}} -t {{.}}{{end}}
{{range .Labels}} --label '{{.}}'{{end}}
{{range .Arguments}} --build-arg {{.}}{{end}}
{{.buildContext}}`
func (b *Build) Execute(name string, logger *gomol.LogAdapter, env []string, st *state.State) error {
fullEnv := environment.Merge(env, st.Environment)
files, err := st.MapSlice(b.Files, fullEnv)
if err != nil {
return err
}
// create out build directory
tmpDir, err := ioutil.TempDir("", "convey-build-")
if err != nil {
return err
}
defer os.RemoveAll(tmpDir)
dockerfile, err := environment.Mapper(b.Dockerfile, fullEnv)
if err != nil {
return err
}
// grab the dirname of the dockerfile to keep paths correct
base := filepath.Dir(dockerfile)
// export the files to it
for _, src := range files {
src, dest := tasks.ParseFilePath(base, src)
cleanDest := filepath.Clean(filepath.Join(tmpDir, dest))
if err = exportFile(name, st.Workspace.Name(), src, cleanDest, st); err != nil {
return err
}
}
// copy the dockerfile to the temp directory
params := map[string]interface{}{
"source": dockerfile,
"destination": tmpDir,
"workspace": st.Workspace.Name(),
}
if err := Docker(name, exportTemplate, params, st); err != nil {
return err
}
tags, err := st.MapSlice(b.Tags, fullEnv)
if err != nil {
return err
}
labels, err := st.MapSlice(b.Labels, fullEnv)
if err != nil {
return err
}
arguments, err := st.MapSlice(b.Arguments, fullEnv)
if err != nil {
return err
}
// now run the build
params = map[string]interface{}{
"dockerfile": filepath.Join(tmpDir, filepath.Base(dockerfile)),
"buildContext": tmpDir,
"Tags": tags,
"Labels": labels,
"Arguments": arguments,
}
return Docker(name, buildTemplate, params, st)
}
func (b *Build) New() tasks.Task {
return &Build{}
}
func (b *Build) Valid() error {
if b.Dockerfile == "" {
return errNoDockerFile
}
if b.Tag != "" {
b.Tags = append([]string{b.Tag}, b.Tags...)
}
if len(b.Tags) == 0 {
return errNoTag
}
return nil
}