From dc94dbd3c17c9011fc1e851694a2190dcf6c2b3c Mon Sep 17 00:00:00 2001
From: baude <bbaude@redhat.com>
Date: Tue, 2 Apr 2019 10:26:43 -0500
Subject: podman-remote image tree
add the ability for the podman-remote client to be able to print an
image tree.
Signed-off-by: baude <bbaude@redhat.com>
---
cmd/podman/tree.go | 77 ++++++++----------------------------
cmd/podman/varlink/io.podman.varlink | 10 ++++-
2 files changed, 25 insertions(+), 62 deletions(-)
(limited to 'cmd')
diff --git a/cmd/podman/tree.go b/cmd/podman/tree.go
index c56e35aef..371e88495 100644
--- a/cmd/podman/tree.go
+++ b/cmd/podman/tree.go
@@ -5,9 +5,9 @@ import (
"fmt"
"github.com/containers/libpod/cmd/podman/cliconfig"
- "github.com/containers/libpod/cmd/podman/libpodruntime"
"github.com/containers/libpod/libpod/image"
- units "github.com/docker/go-units"
+ "github.com/containers/libpod/pkg/adapter"
+ "github.com/docker/go-units"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
@@ -41,16 +41,6 @@ func init() {
treeCommand.Flags().BoolVar(&treeCommand.WhatRequires, "whatrequires", false, "Show all child images and layers of the specified image")
}
-// infoImage keep information of Image along with all associated layers
-type infoImage struct {
- // id of image
- id string
- // tags of image
- tags []string
- // layers stores all layers of image.
- layers []image.LayerInfo
-}
-
func treeCmd(c *cliconfig.TreeValues) error {
args := c.InputArgs
if len(args) == 0 {
@@ -60,46 +50,33 @@ func treeCmd(c *cliconfig.TreeValues) error {
return errors.Errorf("you must provide at most 1 argument")
}
- runtime, err := libpodruntime.GetRuntime(&c.PodmanCommand)
+ runtime, err := adapter.GetRuntime(&c.PodmanCommand)
if err != nil {
return errors.Wrapf(err, "error creating libpod runtime")
}
defer runtime.Shutdown(false)
-
- img, err := runtime.ImageRuntime().NewFromLocal(args[0])
+ imageInfo, layerInfoMap, img, err := runtime.Tree(c)
if err != nil {
return err
}
+ return printTree(imageInfo, layerInfoMap, img, c.WhatRequires)
+}
- // Fetch map of image-layers, which is used for printing output.
- layerInfoMap, err := image.GetLayersMapWithImageInfo(runtime.ImageRuntime())
- if err != nil {
- return errors.Wrapf(err, "error while retriving layers of image %q", img.InputName)
- }
-
- // Create an imageInfo and fill the image and layer info
- imageInfo := &infoImage{
- id: img.ID(),
- tags: img.Names(),
- }
-
+func printTree(imageInfo *image.InfoImage, layerInfoMap map[string]*image.LayerInfo, img *adapter.ContainerImage, whatRequires bool) error {
size, err := img.Size(context.Background())
if err != nil {
- return errors.Wrapf(err, "error while retriving image size")
+ return err
}
- fmt.Printf("Image ID: %s\n", imageInfo.id[:12])
- fmt.Printf("Tags:\t %s\n", imageInfo.tags)
+
+ fmt.Printf("Image ID: %s\n", imageInfo.ID[:12])
+ fmt.Printf("Tags:\t %s\n", imageInfo.Tags)
fmt.Printf("Size:\t %v\n", units.HumanSizeWithPrecision(float64(*size), 4))
fmt.Printf(fmt.Sprintf("Image Layers\n"))
- if !c.WhatRequires {
+ if !whatRequires {
// fill imageInfo with layers associated with image.
// the layers will be filled such that
// (Start)RootLayer->...intermediate Parent Layer(s)-> TopLayer(End)
- err := buildImageHierarchyMap(imageInfo, layerInfoMap, img.TopLayer())
- if err != nil {
- return err
- }
// Build output from imageInfo into buffer
printImageHierarchy(imageInfo)
@@ -108,30 +85,8 @@ func treeCmd(c *cliconfig.TreeValues) error {
// the layers will be filled such that
// (Start)TopLayer->...intermediate Child Layer(s)-> Child TopLayer(End)
// (Forks)... intermediate Child Layer(s) -> Child Top Layer(End)
- err := printImageChildren(layerInfoMap, img.TopLayer(), "", true)
- if err != nil {
- return err
- }
- }
-
- return nil
-}
-
-// Stores hierarchy of images such that all parent layers using which image is built are stored in imageInfo
-// Layers are added such that (Start)RootLayer->...intermediate Parent Layer(s)-> TopLayer(End)
-func buildImageHierarchyMap(imageInfo *infoImage, layerMap map[string]*image.LayerInfo, layerID string) error {
- if layerID == "" {
- return nil
- }
- ll, ok := layerMap[layerID]
- if !ok {
- return fmt.Errorf("lookup error: layerid %s not found", layerID)
+ return printImageChildren(layerInfoMap, img.TopLayer(), "", true)
}
- if err := buildImageHierarchyMap(imageInfo, layerMap, ll.ParentID); err != nil {
- return err
- }
-
- imageInfo.layers = append(imageInfo.layers, *ll)
return nil
}
@@ -175,14 +130,14 @@ func printImageChildren(layerMap map[string]*image.LayerInfo, layerID string, pr
}
// prints the layers info of image
-func printImageHierarchy(imageInfo *infoImage) {
- for count, l := range imageInfo.layers {
+func printImageHierarchy(imageInfo *image.InfoImage) {
+ for count, l := range imageInfo.Layers {
var tags string
intend := middleItem
if len(l.RepoTags) > 0 {
tags = fmt.Sprintf(" Top Layer of: %s", l.RepoTags)
}
- if count == len(imageInfo.layers)-1 {
+ if count == len(imageInfo.Layers)-1 {
intend = lastItem
}
fmt.Printf("%s ID: %s Size: %7v%s\n", intend, l.ID[:12], units.HumanSizeWithPrecision(float64(l.Size), 4), tags)
diff --git a/cmd/podman/varlink/io.podman.varlink b/cmd/podman/varlink/io.podman.varlink
index 2ff06a6f6..92fdcd20f 100644
--- a/cmd/podman/varlink/io.podman.varlink
+++ b/cmd/podman/varlink/io.podman.varlink
@@ -68,7 +68,8 @@ type Image (
virtualSize: int,
containers: int,
labels: [string]string,
- isParent: bool
+ isParent: bool,
+ topLayer: string
)
# ImageHistory describes the returned structure from ImageHistory.
@@ -1161,8 +1162,15 @@ method LoadImage(name: string, inputFile: string, quiet: bool, deleteFile: bool)
# GetEvents returns known libpod events filtered by the options provided.
method GetEvents(filter: []string, since: string, until: string) -> (events: Event)
+# Diff returns a diff between libpod objects
method Diff(name: string) -> (diffs: []DiffInfo)
+# GetLayersMapWithImageInfo is for the development of Podman and should not be used.
+method GetLayersMapWithImageInfo() -> (layerMap: string)
+
+# BuildImageHierarchyMap is for the development of Podman and should not be used.
+method BuildImageHierarchyMap(name: string) -> (imageInfo: string)
+
# ImageNotFound means the image could not be found by the provided name or ID in local storage.
error ImageNotFound (id: string, reason: string)
--
cgit v1.2.3-54-g00ecf