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/
install_packages.go
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/
install_packages.go
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// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"context"
"encoding/json"
"flag"
"log"
"github.com/GoogleCloudPlatform/cos-customizer/src/pkg/config"
"github.com/GoogleCloudPlatform/cos-customizer/src/pkg/fs"
"github.com/GoogleCloudPlatform/cos-customizer/src/pkg/provisioner"
"github.com/google/subcommands"
)
const (
anthosInstallerVersion = "anthos_installer-linux-amd64-v0.0.1-6f32aca.tar.gz"
anthosInstallerReleaseBucket = "cos-anthos-builds-us"
)
// InstallPackage installs the packages based on thes
// pkg-spec by the anthos-installer.
type InstallPackage struct {
PkgSpecURL string
}
// Name implements subcommands.Command.Name.
func (ip *InstallPackage) Name() string {
return "anthos-installer-install"
}
// Synopsis implements subcommands.Command.Synopsis.
func (ip *InstallPackage) Synopsis() string {
return "Installs packages specified by pkgspec files."
}
// Usage implements subcommands.Command.Usage.
func (ip *InstallPackage) Usage() string {
return `anthos-installer-install [flags]
`
}
// SetFlags implements subcommands.Command.SetFlags.
func (ip *InstallPackage) SetFlags(f *flag.FlagSet) {
f.StringVar(&ip.PkgSpecURL, "pkgspec-url", "", "URL path that points to the package spec.")
}
// Execute implements subcommands.Command.Execute. It configures the current image build process to
// customize the result image with a shell script.
func (ip *InstallPackage) Execute(ctx context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus {
if f.NArg() != 0 {
f.Usage()
return subcommands.ExitUsageError
}
files, ok := args[0].(*fs.Files)
if !ok {
log.Panic("InstallPackage expects *fs.Files")
}
if ip.PkgSpecURL == "" {
log.Printf("Required package spec is not provided for %s step\n", ip.Name())
return subcommands.ExitFailure
}
var provConfig provisioner.Config
if err := config.LoadFromFile(files.ProvConfig, &provConfig); err != nil {
log.Println(err)
return subcommands.ExitFailure
}
buf, err := json.Marshal(&provisioner.InstallPackagesStep{
BuildContext: "user",
PkgSpecURL: ip.PkgSpecURL,
AnthosInstallerReleaseBucket: anthosInstallerReleaseBucket,
AnthosInstallerVersion: anthosInstallerVersion,
})
if err != nil {
log.Println(err)
return subcommands.ExitFailure
}
provConfig.Steps = append(provConfig.Steps, provisioner.StepConfig{
Type: "InstallPackages",
Args: json.RawMessage(buf),
})
if err := config.SaveConfigToPath(files.ProvConfig, &provConfig); err != nil {
log.Println(err)
return subcommands.ExitFailure
}
return subcommands.ExitSuccess
}