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Merge pull request #10 from justincormack/pull-before-create
Make sure we always pull images if create fails
This commit is contained in:
commit
d504afe479
@ -123,7 +123,7 @@ func buildInternal(name string, pull bool, config []byte) {
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kernelAltName = "bzImage"
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ktarName = "kernel.tar"
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)
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out, err := ImageExtract(m.Kernel.Image, "")
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out, err := ImageExtract(m.Kernel.Image, "", enforceContentTrust(m.Kernel.Image, &m.Trust), pull)
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if err != nil {
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log.Fatalf("Failed to extract kernel image and tarball: %v", err)
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}
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@ -138,15 +138,8 @@ func buildInternal(name string, pull bool, config []byte) {
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// convert init images to tarballs
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log.Infof("Add init containers:")
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for _, ii := range m.Init {
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if pull || enforceContentTrust(ii, &m.Trust) {
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log.Infof("Pull init image: %s", ii)
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err := dockerPull(ii, enforceContentTrust(ii, &m.Trust))
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if err != nil {
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log.Fatalf("Could not pull image %s: %v", ii, err)
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}
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}
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log.Infof("Process init image: %s", ii)
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init, err := ImageExtract(ii, "")
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init, err := ImageExtract(ii, "", enforceContentTrust(ii, &m.Trust), pull)
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if err != nil {
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log.Fatalf("Failed to build init tarball from %s: %v", ii, err)
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}
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@ -156,13 +149,6 @@ func buildInternal(name string, pull bool, config []byte) {
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log.Infof("Add onboot containers:")
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for i, image := range m.Onboot {
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if pull || enforceContentTrust(image.Image, &m.Trust) {
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log.Infof(" Pull: %s", image.Image)
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err := dockerPull(image.Image, enforceContentTrust(image.Image, &m.Trust))
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if err != nil {
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log.Fatalf("Could not pull image %s: %v", image.Image, err)
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}
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}
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log.Infof(" Create OCI config for %s", image.Image)
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config, err := ConfigToOCI(&image)
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if err != nil {
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@ -170,7 +156,7 @@ func buildInternal(name string, pull bool, config []byte) {
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}
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so := fmt.Sprintf("%03d", i)
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path := "containers/onboot/" + so + "-" + image.Name
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out, err := ImageBundle(path, image.Image, config)
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out, err := ImageBundle(path, image.Image, config, enforceContentTrust(image.Image, &m.Trust), pull)
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if err != nil {
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log.Fatalf("Failed to extract root filesystem for %s: %v", image.Image, err)
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}
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@ -180,20 +166,13 @@ func buildInternal(name string, pull bool, config []byte) {
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log.Infof("Add service containers:")
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for _, image := range m.Services {
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if pull || enforceContentTrust(image.Image, &m.Trust) {
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log.Infof(" Pull: %s", image.Image)
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err := dockerPull(image.Image, enforceContentTrust(image.Image, &m.Trust))
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if err != nil {
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log.Fatalf("Could not pull image %s: %v", image.Image, err)
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}
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}
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log.Infof(" Create OCI config for %s", image.Image)
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config, err := ConfigToOCI(&image)
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if err != nil {
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log.Fatalf("Failed to create config.json for %s: %v", image.Image, err)
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}
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path := "containers/services/" + image.Name
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out, err := ImageBundle(path, image.Image, config)
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out, err := ImageBundle(path, image.Image, config, enforceContentTrust(image.Image, &m.Trust), pull)
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if err != nil {
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log.Fatalf("Failed to extract root filesystem for %s: %v", image.Image, err)
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}
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@ -40,7 +40,7 @@ nameserver 2001:4860:4860::8844
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}
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// ImageExtract extracts the filesystem from an image and returns a tarball with the files prefixed by the given path
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func ImageExtract(image, prefix string) ([]byte, error) {
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func ImageExtract(image, prefix string, trust bool, pull bool) ([]byte, error) {
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log.Debugf("image extract: %s %s", image, prefix)
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out := new(bytes.Buffer)
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tw := tar.NewWriter(out)
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@ -48,7 +48,7 @@ func ImageExtract(image, prefix string) ([]byte, error) {
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if err != nil {
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return []byte{}, err
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}
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err = imageTar(image, prefix, tw)
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err = imageTar(image, prefix, tw, trust, pull)
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if err != nil {
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return []byte{}, err
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}
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@ -87,14 +87,31 @@ func tarPrefix(path string, tw *tar.Writer) error {
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return nil
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}
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func imageTar(image, prefix string, tw *tar.Writer) error {
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func imageTar(image, prefix string, tw *tar.Writer, trust bool, pull bool) error {
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log.Debugf("image tar: %s %s", image, prefix)
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if prefix != "" && prefix[len(prefix)-1] != byte('/') {
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return fmt.Errorf("prefix does not end with /: %s", prefix)
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}
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if pull || trust {
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log.Infof("Pull image: %s", image)
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err := dockerPull(image, trust)
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if err != nil {
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return fmt.Errorf("Could not pull image %s: %v", image, err)
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}
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}
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container, err := dockerCreate(image)
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if err != nil {
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return fmt.Errorf("Failed to docker create image %s: %v", image, err)
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// most likely we need to pull the image if this failed
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log.Infof("Pull image: %s", image)
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err := dockerPull(image, trust)
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if err != nil {
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return fmt.Errorf("Could not pull image %s: %v", image, err)
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}
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container, err = dockerCreate(image)
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if err != nil {
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return fmt.Errorf("Failed to docker create image %s: %v", image, err)
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}
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}
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contents, err := dockerExport(container)
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if err != nil {
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@ -161,7 +178,7 @@ func imageTar(image, prefix string, tw *tar.Writer) error {
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}
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// ImageBundle produces an OCI bundle at the given path in a tarball, given an image and a config.json
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func ImageBundle(path string, image string, config []byte) ([]byte, error) {
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func ImageBundle(path string, image string, config []byte, trust bool, pull bool) ([]byte, error) {
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log.Debugf("image bundle: %s %s cfg: %s", path, image, string(config))
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out := new(bytes.Buffer)
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tw := tar.NewWriter(out)
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@ -183,7 +200,7 @@ func ImageBundle(path string, image string, config []byte) ([]byte, error) {
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if err != nil {
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return []byte{}, err
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}
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err = imageTar(image, path+"/rootfs/", tw)
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err = imageTar(image, path+"/rootfs/", tw, trust, pull)
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if err != nil {
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return []byte{}, err
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}
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