diff options
Diffstat (limited to 'libpod/container.go')
| -rw-r--r-- | libpod/container.go | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/libpod/container.go b/libpod/container.go index d0eb6a992..026eb1c4f 100644 --- a/libpod/container.go +++ b/libpod/container.go @@ -1,7 +1,9 @@ package libpod import ( + "encoding/json" "fmt" + "io/ioutil" "net" "os" "path/filepath" @@ -407,6 +409,30 @@ func (c *Container) Spec() *spec.Spec { return returnSpec } +// specFromState returns the unmarshalled json config of the container. If the +// config does not exist (e.g., because the container was never started) return +// the spec from the config. +func (c *Container) specFromState() (*spec.Spec, error) { + spec := c.config.Spec + + if f, err := os.Open(c.state.ConfigPath); err == nil { + content, err := ioutil.ReadAll(f) + if err != nil { + return nil, errors.Wrapf(err, "error reading container config") + } + if err := json.Unmarshal([]byte(content), &spec); err != nil { + return nil, errors.Wrapf(err, "error unmarshalling container config") + } + } else { + // ignore when the file does not exist + if !os.IsNotExist(err) { + return nil, errors.Wrapf(err, "error opening container config") + } + } + + return spec, nil +} + // ID returns the container's ID func (c *Container) ID() string { return c.config.ID |