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Support mlock and custom tmpdir for containerized plugins (#23215)

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This commit is contained in:
Tom Proctor
2023-09-22 12:14:02 +01:00
committed by GitHub
parent 82378ae232
commit a074bf9cbf
6 changed files with 29 additions and 16 deletions
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6
changelog/23215.txt Normal file
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@@ -0,0 +1,6 @@
```release-note:bug
plugins: Containerized plugins can be run with mlock enabled.
```
```release-note:improvement
plugins: Containerized plugins can be configured to still work when running with systemd's PrivateTmp=true setting.
```

4
go.mod
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@@ -97,7 +97,7 @@ require (
github.com/hashicorp/go-memdb v1.3.4
github.com/hashicorp/go-msgpack v1.1.5
github.com/hashicorp/go-multierror v1.1.1
github.com/hashicorp/go-plugin v1.5.1
github.com/hashicorp/go-plugin v1.5.2
github.com/hashicorp/go-raftchunking v0.6.3-0.20191002164813-7e9e8525653a
github.com/hashicorp/go-retryablehttp v0.7.4
github.com/hashicorp/go-rootcerts v1.0.2
@@ -386,7 +386,7 @@ require (
github.com/hashicorp/go-metrics v0.5.1 // indirect
github.com/hashicorp/go-msgpack/v2 v2.0.0 // indirect
github.com/hashicorp/go-secure-stdlib/fileutil v0.1.0 // indirect
github.com/hashicorp/go-secure-stdlib/plugincontainer v0.2.1 // indirect
github.com/hashicorp/go-secure-stdlib/plugincontainer v0.2.2 // indirect
github.com/hashicorp/go-slug v0.12.1 // indirect
github.com/hashicorp/go-tfe v1.33.0 // indirect
github.com/hashicorp/jsonapi v0.0.0-20210826224640-ee7dae0fb22d // indirect

7
go.sum
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@@ -2012,8 +2012,9 @@ github.com/hashicorp/go-multierror v1.0.0/go.mod h1:dHtQlpGsu+cZNNAkkCN/P3hoUDHh
github.com/hashicorp/go-multierror v1.1.0/go.mod h1:spPvp8C1qA32ftKqdAHm4hHTbPw+vmowP0z+KUhOZdA=
github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+lD48awMYo=
github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
github.com/hashicorp/go-plugin v1.5.1 h1:oGm7cWBaYIp3lJpx1RUEfLWophprE2EV/KUeqBYo+6k=
github.com/hashicorp/go-plugin v1.5.1/go.mod h1:w1sAEES3g3PuV/RzUrgow20W2uErMly84hhD3um1WL4=
github.com/hashicorp/go-plugin v1.5.2 h1:aWv8eimFqWlsEiMrYZdPYl+FdHaBJSN4AWwGWfT1G2Y=
github.com/hashicorp/go-plugin v1.5.2/go.mod h1:w1sAEES3g3PuV/RzUrgow20W2uErMly84hhD3um1WL4=
github.com/hashicorp/go-raftchunking v0.6.3-0.20191002164813-7e9e8525653a h1:FmnBDwGwlTgugDGbVxwV8UavqSMACbGrUpfc98yFLR4=
github.com/hashicorp/go-raftchunking v0.6.3-0.20191002164813-7e9e8525653a/go.mod h1:xbXnmKqX9/+RhPkJ4zrEx4738HacP72aaUPlT2RZ4sU=
github.com/hashicorp/go-retryablehttp v0.5.3/go.mod h1:9B5zBasrRhHXnJnui7y6sL7es7NDiJgTc6Er0maI1Xs=
@@ -2046,8 +2047,8 @@ github.com/hashicorp/go-secure-stdlib/parseutil v0.1.7 h1:UpiO20jno/eV1eVZcxqWnU
github.com/hashicorp/go-secure-stdlib/parseutil v0.1.7/go.mod h1:QmrqtbKuxxSWTN3ETMPuB+VtEiBJ/A9XhoYGv8E1uD8=
github.com/hashicorp/go-secure-stdlib/password v0.1.1 h1:6JzmBqXprakgFEHwBgdchsjaA9x3GyjdI568bXKxa60=
github.com/hashicorp/go-secure-stdlib/password v0.1.1/go.mod h1:9hH302QllNwu1o2TGYtSk8I8kTAN0ca1EHpwhm5Mmzo=
github.com/hashicorp/go-secure-stdlib/plugincontainer v0.2.1 h1:aTW1KKDId4VQjK+zgvsu6sKlVGr17uAUAaceRwhvvoI=
github.com/hashicorp/go-secure-stdlib/plugincontainer v0.2.1/go.mod h1:Cv387jRKKbetAp5AWK4zL7UxdeBeDTgUJOnmS4T/4I8=
github.com/hashicorp/go-secure-stdlib/plugincontainer v0.2.2 h1:lNWQ5KVsLmzjvN11LYqaTXtMrCP7CyxfmTeR3h0l3s8=
github.com/hashicorp/go-secure-stdlib/plugincontainer v0.2.2/go.mod h1:7xQt0+IfRmzYBLpFx+4MYfLpBdd1PT1VatGKRswf7xE=
github.com/hashicorp/go-secure-stdlib/reloadutil v0.1.1 h1:SMGUnbpAcat8rIKHkBPjfv81yC46a8eCNZ2hsR2l1EI=
github.com/hashicorp/go-secure-stdlib/reloadutil v0.1.1/go.mod h1:Ch/bf00Qnx77MZd49JRgHYqHQjtEmTgGU2faufpVZb0=
github.com/hashicorp/go-secure-stdlib/strutil v0.1.1/go.mod h1:gKOamz3EwoIoJq7mlMIRBpVTAUn8qPCrEclOKKWhD3U=

4
sdk/go.mod
View File

@@ -24,13 +24,13 @@ require (
github.com/hashicorp/go-kms-wrapping/entropy/v2 v2.0.0
github.com/hashicorp/go-kms-wrapping/v2 v2.0.8
github.com/hashicorp/go-multierror v1.1.1
github.com/hashicorp/go-plugin v1.5.1
github.com/hashicorp/go-plugin v1.5.2
github.com/hashicorp/go-retryablehttp v0.7.1
github.com/hashicorp/go-secure-stdlib/base62 v0.1.2
github.com/hashicorp/go-secure-stdlib/mlock v0.1.2
github.com/hashicorp/go-secure-stdlib/parseutil v0.1.7
github.com/hashicorp/go-secure-stdlib/password v0.1.1
github.com/hashicorp/go-secure-stdlib/plugincontainer v0.2.1
github.com/hashicorp/go-secure-stdlib/plugincontainer v0.2.2
github.com/hashicorp/go-secure-stdlib/strutil v0.1.2
github.com/hashicorp/go-secure-stdlib/tlsutil v0.1.2
github.com/hashicorp/go-sockaddr v1.0.2

8
sdk/go.sum
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@@ -247,8 +247,8 @@ github.com/hashicorp/go-multierror v1.0.0/go.mod h1:dHtQlpGsu+cZNNAkkCN/P3hoUDHh
github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+lD48awMYo=
github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
github.com/hashicorp/go-plugin v1.0.1/go.mod h1:++UyYGoz3o5w9ZzAdZxtQKrWWP+iqPBn3cQptSMzBuY=
github.com/hashicorp/go-plugin v1.5.1 h1:oGm7cWBaYIp3lJpx1RUEfLWophprE2EV/KUeqBYo+6k=
github.com/hashicorp/go-plugin v1.5.1/go.mod h1:w1sAEES3g3PuV/RzUrgow20W2uErMly84hhD3um1WL4=
github.com/hashicorp/go-plugin v1.5.2 h1:aWv8eimFqWlsEiMrYZdPYl+FdHaBJSN4AWwGWfT1G2Y=
github.com/hashicorp/go-plugin v1.5.2/go.mod h1:w1sAEES3g3PuV/RzUrgow20W2uErMly84hhD3um1WL4=
github.com/hashicorp/go-retryablehttp v0.5.3/go.mod h1:9B5zBasrRhHXnJnui7y6sL7es7NDiJgTc6Er0maI1Xs=
github.com/hashicorp/go-retryablehttp v0.5.4/go.mod h1:9B5zBasrRhHXnJnui7y6sL7es7NDiJgTc6Er0maI1Xs=
github.com/hashicorp/go-retryablehttp v0.7.1 h1:sUiuQAnLlbvmExtFQs72iFW/HXeUn8Z1aJLQ4LJJbTQ=
@@ -265,8 +265,8 @@ github.com/hashicorp/go-secure-stdlib/parseutil v0.1.7 h1:UpiO20jno/eV1eVZcxqWnU
github.com/hashicorp/go-secure-stdlib/parseutil v0.1.7/go.mod h1:QmrqtbKuxxSWTN3ETMPuB+VtEiBJ/A9XhoYGv8E1uD8=
github.com/hashicorp/go-secure-stdlib/password v0.1.1 h1:6JzmBqXprakgFEHwBgdchsjaA9x3GyjdI568bXKxa60=
github.com/hashicorp/go-secure-stdlib/password v0.1.1/go.mod h1:9hH302QllNwu1o2TGYtSk8I8kTAN0ca1EHpwhm5Mmzo=
github.com/hashicorp/go-secure-stdlib/plugincontainer v0.2.1 h1:aTW1KKDId4VQjK+zgvsu6sKlVGr17uAUAaceRwhvvoI=
github.com/hashicorp/go-secure-stdlib/plugincontainer v0.2.1/go.mod h1:Cv387jRKKbetAp5AWK4zL7UxdeBeDTgUJOnmS4T/4I8=
github.com/hashicorp/go-secure-stdlib/plugincontainer v0.2.2 h1:lNWQ5KVsLmzjvN11LYqaTXtMrCP7CyxfmTeR3h0l3s8=
github.com/hashicorp/go-secure-stdlib/plugincontainer v0.2.2/go.mod h1:7xQt0+IfRmzYBLpFx+4MYfLpBdd1PT1VatGKRswf7xE=
github.com/hashicorp/go-secure-stdlib/strutil v0.1.1/go.mod h1:gKOamz3EwoIoJq7mlMIRBpVTAUn8qPCrEclOKKWhD3U=
github.com/hashicorp/go-secure-stdlib/strutil v0.1.2 h1:kes8mmyCpxJsI7FTwtzRqEy9CdjCtrXrXGuOpxEA7Ts=
github.com/hashicorp/go-secure-stdlib/strutil v0.1.2/go.mod h1:Gou2R9+il93BqX25LAKCLuM+y9U2T4hlwvT1yprcna4=

16
sdk/helper/pluginutil/run_config.go
View File

@@ -58,12 +58,16 @@ type runConfig struct {
PluginClientConfig
}
func (rc runConfig) mlockEnabled() bool {
return rc.MLock || (rc.Wrapper != nil && rc.Wrapper.MlockEnabled())
}
func (rc runConfig) generateCmd(ctx context.Context) (cmd *exec.Cmd, clientTLSConfig *tls.Config, err error) {
cmd = exec.Command(rc.command, rc.args...)
cmd.Env = append(cmd.Env, rc.env...)
// Add the mlock setting to the ENV of the plugin
if rc.MLock || (rc.Wrapper != nil && rc.Wrapper.MlockEnabled()) {
if rc.mlockEnabled() {
cmd.Env = append(cmd.Env, fmt.Sprintf("%s=%s", PluginMlockEnabled, "true"))
}
version, err := rc.Wrapper.VaultVersion(ctx)
@@ -139,7 +143,8 @@ func (rc runConfig) makeConfig(ctx context.Context) (*plugin.ClientConfig, error
clientConfig.SkipHostEnv = true
clientConfig.RunnerFunc = containerCfg.NewContainerRunner
clientConfig.UnixSocketConfig = &plugin.UnixSocketConfig{
Group: strconv.Itoa(containerCfg.GroupAdd),
Group: strconv.Itoa(containerCfg.GroupAdd),
TempDir: os.Getenv("VAULT_PLUGIN_TMPDIR"),
}
}
return clientConfig, nil
@@ -155,9 +160,10 @@ func (rc runConfig) containerConfig(ctx context.Context, env []string) (*pluginc
Tag: rc.imageTag,
SHA256: fmt.Sprintf("%x", rc.sha256),
Env: env,
GroupAdd: os.Getgid(),
Runtime: consts.DefaultContainerPluginOCIRuntime,
Env: env,
GroupAdd: os.Getgid(),
Runtime: consts.DefaultContainerPluginOCIRuntime,
CapIPCLock: rc.mlockEnabled(),
Labels: map[string]string{
labelVaultPID: strconv.Itoa(os.Getpid()),
labelVaultClusterID: clusterID,