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Add support for restoring existing podman env #9801

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Dec 8, 2020
Merged

Add support for restoring existing podman env #9801

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dae980a
Add support for restoring existing podman env
afbjorklund Nov 29, 2020
cd683b3
Fix whitespace issues for goimports
afbjorklund Dec 5, 2020
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37 changes: 34 additions & 3 deletions cmd/minikube/cmd/podman-env.go
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@ import (
"github.com/docker/machine/libmachine/drivers"
"github.com/docker/machine/libmachine/ssh"
"github.com/spf13/cobra"
"k8s.io/minikube/pkg/drivers/kic/oci"
"k8s.io/minikube/pkg/minikube/command"
"k8s.io/minikube/pkg/minikube/constants"
"k8s.io/minikube/pkg/minikube/driver"
Expand All @@ -39,9 +40,27 @@ import (
"k8s.io/minikube/pkg/minikube/shell"
)

var podmanEnv1Tmpl = fmt.Sprintf("{{ .Prefix }}%s{{ .Delimiter }}{{ .VarlinkBridge }}{{ .Suffix }}{{ .Prefix }}%s{{ .Delimiter }}{{ .MinikubePodmanProfile }}{{ .Suffix }}{{ .UsageHint }}", constants.PodmanVarlinkBridgeEnv, constants.MinikubeActivePodmanEnv)

var podmanEnv2Tmpl = fmt.Sprintf("{{ .Prefix }}%s{{ .Delimiter }}{{ .ContainerHost }}{{ .Suffix }}{{ if .ContainerSSHKey }}{{ .Prefix }}%s{{ .Delimiter }}{{ .ContainerSSHKey}}{{ .Suffix }}{{ end }}{{ .Prefix }}%s{{ .Delimiter }}{{ .MinikubePodmanProfile }}{{ .Suffix }}{{ .UsageHint }}", constants.PodmanContainerHostEnv, constants.PodmanContainerSSHKeyEnv, constants.MinikubeActivePodmanEnv)
var podmanEnv1Tmpl = fmt.Sprintf(
"{{ .Prefix }}%s{{ .Delimiter }}{{ .VarlinkBridge }}{{ .Suffix }}"+
"{{ .Prefix }}%s{{ .Delimiter }}{{ .MinikubePodmanProfile }}{{ .Suffix }}"+
"{{ .UsageHint }}",
constants.PodmanVarlinkBridgeEnv,
constants.MinikubeActivePodmanEnv)

var podmanEnv2Tmpl = fmt.Sprintf(
"{{ .Prefix }}%s{{ .Delimiter }}{{ .ContainerHost }}{{ .Suffix }}"+
"{{ if .ContainerSSHKey }}"+
"{{ .Prefix }}%s{{ .Delimiter }}{{ .ContainerSSHKey}}{{ .Suffix }}"+
"{{ end }}"+
"{{ if .ExistingContainerHost }}"+
"{{ .Prefix }}%s{{ .Delimiter }}{{ .ExistingContainerHost }}{{ .Suffix }}"+
"{{ end }}"+
"{{ .Prefix }}%s{{ .Delimiter }}{{ .MinikubePodmanProfile }}{{ .Suffix }}"+
"{{ .UsageHint }}",
constants.PodmanContainerHostEnv,
constants.PodmanContainerSSHKeyEnv,
constants.ExistingContainerHostEnv,
constants.MinikubeActivePodmanEnv)

// PodmanShellConfig represents the shell config for Podman
type PodmanShellConfig struct {
Expand All @@ -50,6 +69,8 @@ type PodmanShellConfig struct {
ContainerHost string
ContainerSSHKey string
MinikubePodmanProfile string

ExistingContainerHost string
}

var podmanUnset bool
Expand All @@ -65,6 +86,9 @@ func podmanShellCfgSet(ec PodmanEnvConfig, envMap map[string]string) *PodmanShel
s.VarlinkBridge = envMap[constants.PodmanVarlinkBridgeEnv]
s.ContainerHost = envMap[constants.PodmanContainerHostEnv]
s.ContainerSSHKey = envMap[constants.PodmanContainerSSHKeyEnv]

s.ExistingContainerHost = envMap[constants.ExistingContainerHostEnv]

s.MinikubePodmanProfile = envMap[constants.MinikubeActivePodmanEnv]

return s
Expand Down Expand Up @@ -259,6 +283,13 @@ func podmanEnvVars(ec PodmanEnvConfig) map[string]string {
for k, v := range env0 {
env[k] = v
}
if os.Getenv(constants.MinikubeActivePodmanEnv) == "" {
e := constants.PodmanContainerHostEnv
if v := oci.InitialEnv(e); v != "" {
key := constants.ExistingContainerHostEnv
env[key] = v
}
}
return env
}

Expand Down
10 changes: 10 additions & 0 deletions pkg/drivers/kic/oci/env.go
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@ import (
var initialEnvs = make(map[string]string)

func init() {
// docker
for _, env := range constants.DockerDaemonEnvs {
if v, set := os.LookupEnv(env); set {
initialEnvs[env] = v
Expand All @@ -34,6 +35,15 @@ func init() {
initialEnvs[exEnv] = v
}
}
// podman
env := constants.PodmanContainerHostEnv
if v, set := os.LookupEnv(env); set {
initialEnvs[env] = v
}
exEnv := constants.ExistingContainerHostEnv
if v, set := os.LookupEnv(exEnv); set {
initialEnvs[exEnv] = v
}
}

// InitialEnv returns the value of the environment variable env before any environment changes made by minikube
Expand Down
3 changes: 3 additions & 0 deletions pkg/minikube/constants/constants.go
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Original file line number Diff line number Diff line change
Expand Up @@ -93,6 +93,9 @@ const (
ExistingDockerCertPathEnv = MinikubeExistingPrefix + "DOCKER_CERT_PATH"
// ExistingDockerTLSVerifyEnv is used to save original docker environment
ExistingDockerTLSVerifyEnv = MinikubeExistingPrefix + "DOCKER_TLS_VERIFY"

// ExistingContainerHostEnv is used to save original podman environment
ExistingContainerHostEnv = MinikubeExistingPrefix + "CONTAINER_HOST"
)

var (
Expand Down