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build: allow dockerfile from URL

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Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
Tonis Tiigi
2020-09-20 17:44:16 -07:00
parent 0360668cc1
commit 290e25917c
3 changed files with 119 additions and 19 deletions
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47
build/build.go
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@ -285,7 +285,7 @@ func isDefaultMobyDriver(d driver.Driver) bool {
return ok
}
func toSolveOpt(d driver.Driver, multiDriver bool, opt Options, dl dockerLoadCallback) (solveOpt *client.SolveOpt, release func(), err error) {
func toSolveOpt(ctx context.Context, d driver.Driver, multiDriver bool, opt Options, pw progress.Writer, dl dockerLoadCallback) (solveOpt *client.SolveOpt, release func(), err error) {
defers := make([]func(), 0, 2)
releaseF := func() {
for _, f := range defers {
@ -425,7 +425,7 @@ func toSolveOpt(d driver.Driver, multiDriver bool, opt Options, dl dockerLoadCal
so.Exports = opt.Exports
so.Session = opt.Session
releaseLoad, err := LoadInputs(opt.Inputs, &so)
releaseLoad, err := LoadInputs(ctx, d, opt.Inputs, pw, &so)
if err != nil {
return nil, nil, err
}
@ -530,7 +530,7 @@ func Build(ctx context.Context, drivers []DriverInfo, opt map[string]Options, do
for i, dp := range m[k] {
d := drivers[dp.driverIndex].Driver
opt.Platforms = dp.platforms
so, release, err := toSolveOpt(d, multiDriver, opt, func(name string) (io.WriteCloser, func(), error) {
so, release, err := toSolveOpt(ctx, d, multiDriver, opt, pw, func(name string) (io.WriteCloser, func(), error) {
return newDockerLoader(ctx, docker, name, mw)
})
if err != nil {
@ -720,7 +720,7 @@ func createTempDockerfile(r io.Reader) (string, error) {
return dir, err
}
func LoadInputs(inp Inputs, target *client.SolveOpt) (func(), error) {
func LoadInputs(ctx context.Context, d driver.Driver, inp Inputs, pw progress.Writer, target *client.SolveOpt) (func(), error) {
if inp.ContextPath == "" {
return nil, errors.New("please specify build context (e.g. \".\" for the current directory)")
}
@ -746,21 +746,22 @@ func LoadInputs(inp Inputs, target *client.SolveOpt) (func(), error) {
if err != nil && err != io.EOF {
return nil, errors.Wrap(err, "failed to peek context header from STDIN")
}
if isArchive(magic) {
// stdin is context
up := uploadprovider.New()
target.FrontendAttrs["context"] = up.Add(buf)
target.Session = append(target.Session, up)
} else {
if inp.DockerfilePath != "" {
return nil, errDockerfileConflict
if !(err == io.EOF && len(magic) == 0) {
if isArchive(magic) {
// stdin is context
up := uploadprovider.New()
target.FrontendAttrs["context"] = up.Add(buf)
target.Session = append(target.Session, up)
} else {
if inp.DockerfilePath != "" {
return nil, errDockerfileConflict
}
// stdin is dockerfile
dockerfileReader = buf
inp.ContextPath, _ = ioutil.TempDir("", "empty-dir")
toRemove = append(toRemove, inp.ContextPath)
target.LocalDirs["context"] = inp.ContextPath
}
// stdin is dockerfile
dockerfileReader = buf
inp.ContextPath, _ = ioutil.TempDir("", "empty-dir")
toRemove = append(toRemove, inp.ContextPath)
target.LocalDirs["context"] = inp.ContextPath
}
case isLocalDir(inp.ContextPath):
@ -791,6 +792,16 @@ func LoadInputs(inp Inputs, target *client.SolveOpt) (func(), error) {
}
toRemove = append(toRemove, dockerfileDir)
dockerfileName = "Dockerfile"
target.FrontendAttrs["dockerfilekey"] = "dockerfile"
}
if urlutil.IsURL(inp.DockerfilePath) {
dockerfileDir, err = createTempDockerfileFromURL(ctx, d, inp.DockerfilePath, pw)
if err != nil {
return nil, err
}
toRemove = append(toRemove, dockerfileDir)
dockerfileName = "Dockerfile"
target.FrontendAttrs["dockerfilekey"] = "dockerfile"
}
if dockerfileName == "" {