Initial Commit

This commit is contained in:
2020-11-06 15:02:18 +01:00
commit 3dd61d2f91
3 changed files with 222 additions and 0 deletions

14
go.mod Normal file
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module lookbuilding
go 1.15
require (
github.com/Microsoft/go-winio v0.4.14 // indirect
github.com/docker/distribution v2.7.1+incompatible // indirect
github.com/docker/docker v1.13.1
github.com/docker/go-connections v0.4.0 // indirect
github.com/docker/go-units v0.4.0 // indirect
github.com/opencontainers/go-digest v1.0.0 // indirect
github.com/pkg/errors v0.9.1 // indirect
golang.org/x/net v0.0.0-20201031054903-ff519b6c9102 // indirect
)

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go.sum Normal file
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github.com/Microsoft/go-winio v0.4.14 h1:+hMXMk01us9KgxGb7ftKQt2Xpf5hH/yky+TDA+qxleU=
github.com/Microsoft/go-winio v0.4.14/go.mod h1:qXqCSQ3Xa7+6tgxaGTIe4Kpcdsi+P8jBhyzoq1bpyYA=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/docker/distribution v2.7.1+incompatible h1:a5mlkVzth6W5A4fOsS3D2EO5BUmsJpcB+cRlLU7cSug=
github.com/docker/distribution v2.7.1+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w=
github.com/docker/docker v1.13.1 h1:IkZjBSIc8hBjLpqeAbeE5mca5mNgeatLHBy3GO78BWo=
github.com/docker/docker v1.13.1/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
github.com/docker/go-connections v0.4.0 h1:El9xVISelRB7BuFusrZozjnkIM5YnzCViNKohAFqRJQ=
github.com/docker/go-connections v0.4.0/go.mod h1:Gbd7IOopHjR8Iph03tsViu4nIes5XhDvyHbTtUxmeec=
github.com/docker/go-units v0.4.0 h1:3uh0PgVws3nIA0Q+MwDC8yjEPf9zjRfZZWXZYDct3Tw=
github.com/docker/go-units v0.4.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20201031054903-ff519b6c9102 h1:42cLlJJdEh+ySyeUUbEQ5bsTiq8voBeTuweGVkY6Puw=
golang.org/x/net v0.0.0-20201031054903-ff519b6c9102/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f h1:+Nyd8tzPX9R7BWHguqsrbFdRx3WQ/1ib8I44HXV5yTA=
golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

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package main
import (
"context"
"encoding/json"
"net/http"
"fmt"
"strings"
"github.com/docker/docker/api/types"
"github.com/docker/docker/client"
)
const (
versioningModeLabel = "lookbuilding.mode"
)
type VersioningMode string
const (
SemVerAny VersioningMode = "SemVerAny"
)
type labeledContainer struct {
container types.Container
mode VersioningMode
}
type tag struct {
Creator int `json:"creator"`
ID int `json:"id"`
LastUpdated string `json:"last_updated"`
LastUpdater int `json:"lastUpdater"`
LastUpdaterUsername string `json:"lastUpdaterUsername"`
Name string `json:"name"`
Repository int `json:"repository"`
FullSize int `json:"full_size"`
V2 bool `json:"v2"`
TagStatus string `json:"tag_status"`
TagLastPulled string `json:"tag_last_pulled"`
TagLastPushed string `json:"tag_last_pushed"`
Images []image `json:images`
}
type image struct {
Architecture string `json:architecture`
Features string `json:features`
Digest string `json:digest`
OS string `json:linux`
OSFeatures string `json:os_features`
Size int `json:size`
Status string `json:status`
LastPulled string `json:last_pulled`
LastPushed string `json:last_pushed`
//"variant":null,
//"os_version":null,
}
// Extract the repository owner (if any), repository and tag (if any) from a docker image name
func getImageParts(name string) (*string, string, *string) {
var repository string
var owner *string
var tag *string
slashIndex := strings.Index(name, "/")
if slashIndex >= 0 {
tmp := name[:slashIndex]
owner = &tmp
name = name[slashIndex+1:]
}
colonIndex := strings.Index(name, ":")
if colonIndex >= 0 {
tmp := name[colonIndex+1:]
tag = &tmp
repository = name[:colonIndex]
} else {
repository = name
}
return owner, repository, tag
}
func getDockerRepoTags(maybe_owner *string, repository string) []tag {
type dockerPollResponse struct {
Count int `json:"count"`
Results []tag `json:"results"`
}
owner := "_"
if maybe_owner != nil {
owner = *maybe_owner
}
url := fmt.Sprintf("https://hub.docker.com/v2/repositories/%s/%s/tags", owner, repository)
resp, err := http.Get(url)
if err != nil {
panic(err)
}
var data dockerPollResponse
err = json.NewDecoder(resp.Body).Decode(&data)
if err != nil {
panic(err)
}
return data.Results
}
func getLabeledContainers(cli *client.Client) []labeledContainer {
out := make([]labeledContainer, 0)
containers, err := cli.ContainerList(context.Background(), types.ContainerListOptions{})
if err != nil {
panic(err)
}
for _, container := range containers {
fmt.Printf("%s %s\n", container.ID[:10], container.Image)
for k, v := range container.Labels {
if k == versioningModeLabel {
lc := labeledContainer{
container,
SemVerAny,
}
out = append(out, lc)
continue;
}
fmt.Printf(" - %s: %s\n", k, v)
}
}
return out
}
func main() {
cli, err := client.NewEnvClient()
if err != nil {
panic(err)
}
labeledContainers := getLabeledContainers(cli)
for _, lc := range labeledContainers {
owner, repository, tag := getImageParts(lc.container.Image)
if owner != nil {
fmt.Printf("container image: %s/%s\n", *owner, repository)
} else {
fmt.Printf("container image: _/%s\n", repository)
}
fmt.Printf(" id: %s\n", lc.container.ImageID)
if tag != nil {
fmt.Printf(" tag: %s\n", *tag)
} else {
fmt.Printf(" no tag\n")
}
repoTags := getDockerRepoTags(owner, repository)
fmt.Println("## tags in registry ##")
for _, tag := range repoTags {
fmt.Printf(" tag: %s\n", tag.Name)
}
fmt.Println("##")
}
}