func (c *Builder) CreateContainer(original string) (*lxc.Container, error) {
cloned, err := util.UUID()
if err != nil {
log.Errorf("Failed to generate uuid. Error: %v", err)
return nil, err
}
ct, err := util.CloneAndStartContainer(original, cloned)
if err != nil {
log.Errorf("Failed to clone container %s as %s. Error: %v", original, cloned, err)
return nil, err
}
return ct, nil
}
func (spec *Spec) Build() error {
for _, statement := range spec.Statements {
log.Infof("Proecssing:|%s|\n", statement)
words := strings.Fields(statement)
switch words[0] {
case "FROM":
if spec.State.Container != nil {
log.Errorf("Container already built. Multiple FROM declaration?\n")
return errors.New("Container already built. Multiple FROM declaration?")
}
var err error
spec.State.Container, err = util.CloneAndStartContainer(words[1], spec.ID)
if err != nil {
log.Errorf("Failed to clone container. Error: %s\n", err)
return err
}
case "RUN":
if spec.State.Container == nil {
log.Error("No container has been created yet. Use FROM directive")
return errors.New("No container has been created yet. Use FROM directive")
}
command := words[1:len(words)]
log.Debugf("Attempting to execute: %#v\n", command)
if err := spec.runCommand(command); err != nil {
log.Errorf("Failed to run command inside container. Error: %s\n", err)
return err
}
case "ENV":
for i := 1; i < len(words); i++ {
if strings.Contains(words[i], "=") {
spec.State.Env = append(spec.State.Env, words[i])
} else {
spec.State.Env = append(spec.State.Env, words[i]+"="+words[i+1])
i++
}
}
case "WORKDIR":
spec.State.Cwd = words[1]
case "ADD":
// setup bind mount
case "COPY":
// copy over files
case "LABEL":
// FIXME
case "USER":
// set exec user id
case "VOLUME":
// FIXME
case "STOPSIGNAL":
// FIXME
case "MAINTAINER":
// FIXME
case "CMD":
// FIXME
case "ENTRYPOINT":
// FIXME
case "EXPOSE":
// FIXME
}
}
return nil
}