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new driver: kubernetes
Tested with `kind` and GKE. Note: "nodes" shown in `docker buildx ls` are unrelated to Kubernetes "nodes". Probably buildx should come up with an alternative term. Usage: $ kind create cluster $ export KUBECONFIG="$(kind get kubeconfig-path --name="kind")" $ docker buildx create --driver kubernetes --driver-opt replicas=3 --use $ docker buildx build -t foo --load . `--load` loads the image into the local Docker. Driver opts: - `image=IMAGE` - Sets the container image to be used for running buildkit. - `namespace=NS` - Sets the Kubernetes namespace. Defaults to the current namespace. - `replicas=N` - Sets the number of `Pod` replicas. Defaults to 1. - `rootless=(true|false)` - Run the container as a non-root user without `securityContext.privileged`. Defaults to false. - `loadbalance=(sticky|random)` - Load-balancing strategy. If set to "sticky", the pod is chosen using the hash of the context path. Defaults to "sticky" Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
This commit is contained in:
Akihiro Suda
224
vendor/github.com/googleapis/gnostic/compiler/reader.go
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vendored
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224
vendor/github.com/googleapis/gnostic/compiler/reader.go
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// Copyright 2017 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package compiler
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import (
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"errors"
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"fmt"
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"io/ioutil"
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"log"
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"net/http"
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"net/url"
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"path/filepath"
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"strings"
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yaml "gopkg.in/yaml.v2"
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)
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var fileCache map[string][]byte
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var infoCache map[string]interface{}
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var count int64
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var verboseReader = false
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var fileCacheEnable = true
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var infoCacheEnable = true
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func initializeFileCache() {
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if fileCache == nil {
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fileCache = make(map[string][]byte, 0)
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}
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}
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func initializeInfoCache() {
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if infoCache == nil {
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infoCache = make(map[string]interface{}, 0)
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}
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}
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func DisableFileCache() {
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fileCacheEnable = false
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}
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func DisableInfoCache() {
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infoCacheEnable = false
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}
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func RemoveFromFileCache(fileurl string) {
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if !fileCacheEnable {
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return
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}
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initializeFileCache()
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delete(fileCache, fileurl)
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}
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func RemoveFromInfoCache(filename string) {
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if !infoCacheEnable {
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return
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}
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initializeInfoCache()
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delete(infoCache, filename)
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}
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func GetInfoCache() map[string]interface{} {
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if infoCache == nil {
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initializeInfoCache()
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}
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return infoCache
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}
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func ClearInfoCache() {
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infoCache = make(map[string]interface{})
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}
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// FetchFile gets a specified file from the local filesystem or a remote location.
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func FetchFile(fileurl string) ([]byte, error) {
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var bytes []byte
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initializeFileCache()
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if fileCacheEnable {
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bytes, ok := fileCache[fileurl]
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if ok {
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if verboseReader {
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log.Printf("Cache hit %s", fileurl)
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}
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return bytes, nil
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}
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if verboseReader {
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log.Printf("Fetching %s", fileurl)
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}
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}
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response, err := http.Get(fileurl)
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if err != nil {
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return nil, err
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}
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defer response.Body.Close()
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if response.StatusCode != 200 {
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return nil, errors.New(fmt.Sprintf("Error downloading %s: %s", fileurl, response.Status))
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}
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bytes, err = ioutil.ReadAll(response.Body)
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if fileCacheEnable && err == nil {
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fileCache[fileurl] = bytes
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}
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return bytes, err
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}
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// ReadBytesForFile reads the bytes of a file.
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func ReadBytesForFile(filename string) ([]byte, error) {
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// is the filename a url?
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fileurl, _ := url.Parse(filename)
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if fileurl.Scheme != "" {
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// yes, fetch it
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bytes, err := FetchFile(filename)
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if err != nil {
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return nil, err
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}
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return bytes, nil
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}
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// no, it's a local filename
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bytes, err := ioutil.ReadFile(filename)
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if err != nil {
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return nil, err
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}
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return bytes, nil
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}
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// ReadInfoFromBytes unmarshals a file as a yaml.MapSlice.
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func ReadInfoFromBytes(filename string, bytes []byte) (interface{}, error) {
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initializeInfoCache()
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if infoCacheEnable {
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cachedInfo, ok := infoCache[filename]
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if ok {
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if verboseReader {
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log.Printf("Cache hit info for file %s", filename)
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}
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return cachedInfo, nil
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}
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if verboseReader {
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log.Printf("Reading info for file %s", filename)
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}
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}
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var info yaml.MapSlice
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err := yaml.Unmarshal(bytes, &info)
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if err != nil {
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return nil, err
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}
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if infoCacheEnable && len(filename) > 0 {
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infoCache[filename] = info
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}
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return info, nil
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}
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// ReadInfoForRef reads a file and return the fragment needed to resolve a $ref.
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func ReadInfoForRef(basefile string, ref string) (interface{}, error) {
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initializeInfoCache()
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if infoCacheEnable {
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info, ok := infoCache[ref]
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if ok {
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if verboseReader {
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log.Printf("Cache hit for ref %s#%s", basefile, ref)
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}
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return info, nil
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}
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if verboseReader {
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log.Printf("Reading info for ref %s#%s", basefile, ref)
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}
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}
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count = count + 1
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basedir, _ := filepath.Split(basefile)
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parts := strings.Split(ref, "#")
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var filename string
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if parts[0] != "" {
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filename = parts[0]
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if _, err := url.ParseRequestURI(parts[0]); err != nil {
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// It is not an URL, so the file is local
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filename = basedir + parts[0]
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}
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} else {
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filename = basefile
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}
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bytes, err := ReadBytesForFile(filename)
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if err != nil {
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return nil, err
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}
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info, err := ReadInfoFromBytes(filename, bytes)
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if err != nil {
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log.Printf("File error: %v\n", err)
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} else {
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if len(parts) > 1 {
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path := strings.Split(parts[1], "/")
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for i, key := range path {
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if i > 0 {
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m, ok := info.(yaml.MapSlice)
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if ok {
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found := false
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for _, section := range m {
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if section.Key == key {
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info = section.Value
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found = true
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}
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}
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if !found {
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infoCache[ref] = nil
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return nil, NewError(nil, fmt.Sprintf("could not resolve %s", ref))
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}
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}
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}
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}
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}
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}
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if infoCacheEnable {
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infoCache[ref] = info
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}
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return info, nil
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}
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