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context.go
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context.go
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// Copyright © 2022 sealos.
//
// 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 bootstrap
import (
"github.com/labring/sealos/pkg/constants"
"github.com/labring/sealos/pkg/env"
"github.com/labring/sealos/pkg/remote"
"github.com/labring/sealos/pkg/ssh"
v2 "github.com/labring/sealos/pkg/types/v1beta1"
"github.com/labring/sealos/pkg/utils/maps"
stringsutil "github.com/labring/sealos/pkg/utils/strings"
)
type Context interface {
GetBash() constants.Bash
GetCluster() *v2.Cluster
GetPathResolver() constants.PathResolver
GetExecer() ssh.Interface
GetRemoter() remote.Interface
}
type realContext struct {
bash constants.Bash
cluster *v2.Cluster
pathResolver constants.PathResolver
execer ssh.Interface
remoter remote.Interface
}
func (ctx realContext) GetBash() constants.Bash {
return ctx.bash
}
func (ctx realContext) GetCluster() *v2.Cluster {
return ctx.cluster
}
func (ctx realContext) GetPathResolver() constants.PathResolver {
return ctx.pathResolver
}
func (ctx realContext) GetExecer() ssh.Interface {
return ctx.execer
}
func (ctx realContext) GetRemoter() remote.Interface {
return ctx.remoter
}
func NewContextFrom(cluster *v2.Cluster) Context {
execer := ssh.NewSSHByCluster(cluster, true)
envProcessor := env.NewEnvProcessor(cluster)
remoter := remote.New(cluster.GetName(), execer)
rootfsImage := cluster.GetRootfsImage()
rootfsEnvs := v2.MergeEnvWithBuiltinKeys(rootfsImage.Env, *rootfsImage)
// bootstrap process depends on the envs in the rootfs image
shellWrapper := func(host, shell string) string {
envs := maps.MergeMap(rootfsEnvs, envProcessor.Getenv(host))
return stringsutil.RenderShellFromEnv(shell, envs)
}
return &realContext{
cluster: cluster,
execer: execer,
bash: constants.NewBash(cluster.GetName(), cluster.GetImageLabels(), shellWrapper),
pathResolver: constants.NewPathResolver(cluster.GetName()),
remoter: remoter,
}
}