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build: update session support detection 

Avoid testing for session support in non-buildkit builder to support
servers that falsely report as `1.39` compatible

Signed-off-by: Tibor Vass <tibor@docker.com>
This commit is contained in:
Tibor Vass 2018-10-22 20:43:36 +00:00
parent 727a83bde2
commit 3e8c41beb0
3 changed files with 6 additions and 6 deletions
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2
cli/command/image/build.go
View File

@ -350,7 +350,7 @@ func runBuild(dockerCli command.Cli, options buildOptions) error {
buildCtx = dockerfileCtx
}
s, err := trySession(dockerCli, contextDir)
s, err := trySession(dockerCli, contextDir, true)
if err != nil {
return err
}

2
cli/command/image/build_buildkit.go
View File

@ -43,7 +43,7 @@ var errDockerfileConflict = errors.New("ambiguous Dockerfile source: both stdin
func runBuildBuildKit(dockerCli command.Cli, options buildOptions) error {
ctx := appcontext.Context()
s, err := trySession(dockerCli, options.context)
s, err := trySession(dockerCli, options.context, false)
if err != nil {
return err
}

8
cli/command/image/build_session.go
View File

@ -27,16 +27,16 @@ import (
const clientSessionRemote = "client-session"
func isSessionSupported(dockerCli command.Cli) bool {
if versions.GreaterThanOrEqualTo(dockerCli.Client().ClientVersion(), "1.39") {
func isSessionSupported(dockerCli command.Cli, forStream bool) bool {
if !forStream && versions.GreaterThanOrEqualTo(dockerCli.Client().ClientVersion(), "1.39") {
return true
}
return dockerCli.ServerInfo().HasExperimental && versions.GreaterThanOrEqualTo(dockerCli.Client().ClientVersion(), "1.31")
}
func trySession(dockerCli command.Cli, contextDir string) (*session.Session, error) {
func trySession(dockerCli command.Cli, contextDir string, forStream bool) (*session.Session, error) {
var s *session.Session
if isSessionSupported(dockerCli) {
if isSessionSupported(dockerCli, forStream) {
sharedKey, err := getBuildSharedKey(contextDir)
if err != nil {
return nil, errors.Wrap(err, "failed to get build shared key")