Ruslan Aliev ca71de3951 Move document filesystem to a separate package
In order to widely use filesystem interface in airshipctl
there is need to move it to separate package to avoid
importing unnecessary dependencies from document
package and, as a consequence, possible cyclic dependencies.
 * filesystem moved from document/fs to pkg/fs

Change-Id: I3b6298462f03db43594a9fa26bf23ab7687c5589
Signed-off-by: Ruslan Aliev <raliev@mirantis.com>
Relates-To: #415
2020-11-30 19:51:30 -06:00

105 lines
3.3 KiB
Go

/*
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
https://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 kubeconfig
import (
"path/filepath"
"opendev.org/airship/airshipctl/pkg/cluster/clustermap"
"opendev.org/airship/airshipctl/pkg/config"
"opendev.org/airship/airshipctl/pkg/errors"
"opendev.org/airship/airshipctl/pkg/fs"
"opendev.org/airship/airshipctl/pkg/util"
)
// KubeconfigDefaultFileName is a default name for kubeconfig
const KubeconfigDefaultFileName = "kubeconfig"
// NewBuilder returns instance of kubeconfig builder.
func NewBuilder() *Builder {
return &Builder{}
}
// Builder is an object that allows to build a kubeconfig based on various provided sources
// such as path to kubeconfig, path to bundle that should contain kubeconfig and parent cluster
type Builder struct {
path string
bundlePath string
clusterName string
root string
clusterMap clustermap.ClusterMap
}
// WithPath allows to set path to prexisting kubeconfig
func (b *Builder) WithPath(filePath string) *Builder {
b.path = filePath
return b
}
// WithBundle allows to set path to bundle that should contain kubeconfig api object
func (b *Builder) WithBundle(bundlePath string) *Builder {
b.bundlePath = bundlePath
return b
}
// WithClusterMap allows to set a parent cluster, that can be used to extract kubeconfig for target cluster
func (b *Builder) WithClusterMap(cMap clustermap.ClusterMap) *Builder {
b.clusterMap = cMap
return b
}
// WithClusterName allows to reach to a cluster to download kubeconfig from there
func (b *Builder) WithClusterName(clusterName string) *Builder {
b.clusterName = clusterName
return b
}
// WithTempRoot allows to set temp root for kubeconfig
func (b *Builder) WithTempRoot(root string) *Builder {
b.root = root
return b
}
// Build builds a kubeconfig interface to be used
func (b *Builder) Build() Interface {
switch {
case b.path != "":
fSys := fs.NewDocumentFs()
return NewKubeConfig(FromFile(b.path, fSys), InjectFilePath(b.path, fSys), InjectTempRoot(b.root))
case b.fromParent():
// TODO add method that would get kubeconfig from parent cluster and glue it together
// with parent kubeconfig if needed
return NewKubeConfig(func() ([]byte, error) {
return nil, errors.ErrNotImplemented{}
})
case b.bundlePath != "":
return NewKubeConfig(FromBundle(b.bundlePath), InjectTempRoot(b.root))
default:
fSys := fs.NewDocumentFs()
// return default path to kubeconfig file in airship workdir
path := filepath.Join(util.UserHomeDir(), config.AirshipConfigDir, KubeconfigDefaultFileName)
return NewKubeConfig(FromFile(path, fSys), InjectFilePath(path, fSys), InjectTempRoot(b.root))
}
}
// fromParent checks if we should get kubeconfig from parent cluster secret
func (b *Builder) fromParent() bool {
if b.clusterMap == nil {
return false
}
return b.clusterMap.DynamicKubeConfig(b.clusterName)
}