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[feature] CWS feature migration (#526)
* Migrate CWS feature
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,237 @@ | ||
| // Unless explicitly stated otherwise all files in this repository are licensed | ||
| // under the Apache License Version 2.0. | ||
| // This product includes software developed at Datadog (https://www.datadoghq.com/). | ||
| // Copyright 2016-present Datadog, Inc. | ||
|
|
||
| package cws | ||
|
|
||
| import ( | ||
| "path/filepath" | ||
|
|
||
| corev1 "k8s.io/api/core/v1" | ||
|
|
||
| "github.com/DataDog/datadog-operator/apis/datadoghq/v1alpha1" | ||
| "github.com/DataDog/datadog-operator/apis/datadoghq/v2alpha1" | ||
| apiutils "github.com/DataDog/datadog-operator/apis/utils" | ||
|
|
||
| apicommon "github.com/DataDog/datadog-operator/apis/datadoghq/common" | ||
| apicommonv1 "github.com/DataDog/datadog-operator/apis/datadoghq/common/v1" | ||
| "github.com/DataDog/datadog-operator/controllers/datadogagent/feature" | ||
| "github.com/DataDog/datadog-operator/controllers/datadogagent/object/volume" | ||
| ) | ||
|
|
||
| func init() { | ||
| err := feature.Register(feature.CWSIDType, buildCWSFeature) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
|
|
||
| func buildCWSFeature(options *feature.Options) feature.Feature { | ||
| cwsFeat := &cwsFeature{} | ||
|
|
||
| return cwsFeat | ||
| } | ||
|
|
||
| type cwsFeature struct { | ||
| configMapConfig *apicommonv1.ConfigMapConfig | ||
| syscallMonitorEnabled bool | ||
| } | ||
|
|
||
| // Configure is used to configure the feature from a v2alpha1.DatadogAgent instance. | ||
| func (f *cwsFeature) Configure(dda *v2alpha1.DatadogAgent) (reqComp feature.RequiredComponents) { | ||
| if dda.Spec.Features != nil && dda.Spec.Features.CWS != nil && apiutils.BoolValue(dda.Spec.Features.CWS.Enabled) { | ||
| cws := dda.Spec.Features.CWS | ||
|
|
||
| f.syscallMonitorEnabled = apiutils.BoolValue(cws.SyscallMonitorEnabled) | ||
|
|
||
| if cws.CustomPolicies != nil && cws.CustomPolicies.Name != "" { | ||
| f.configMapConfig = cws.CustomPolicies | ||
| } | ||
|
|
||
| reqComp = feature.RequiredComponents{ | ||
| Agent: feature.RequiredComponent{ | ||
| IsRequired: apiutils.NewBoolPointer(true), | ||
| Containers: []apicommonv1.AgentContainerName{ | ||
| apicommonv1.SecurityAgentContainerName, | ||
| apicommonv1.SystemProbeContainerName, | ||
| }, | ||
| }, | ||
| } | ||
| } | ||
|
|
||
| return reqComp | ||
| } | ||
|
|
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| // ConfigureV1 use to configure the feature from a v1alpha1.DatadogAgent instance. | ||
| func (f *cwsFeature) ConfigureV1(dda *v1alpha1.DatadogAgent) (reqComp feature.RequiredComponents) { | ||
| if dda.Spec.Agent.Security != nil && *dda.Spec.Agent.Security.Runtime.Enabled { | ||
| runtime := dda.Spec.Agent.Security.Runtime | ||
|
|
||
| if runtime.SyscallMonitor != nil && apiutils.BoolValue(runtime.SyscallMonitor.Enabled) { | ||
| f.syscallMonitorEnabled = true | ||
| } | ||
|
|
||
| if runtime.PoliciesDir != nil && runtime.PoliciesDir.ConfigMapName != "" { | ||
| f.configMapConfig = v1alpha1.ConvertConfigDirSpec(runtime.PoliciesDir).ConfigMap | ||
| } | ||
|
|
||
| reqComp = feature.RequiredComponents{ | ||
| Agent: feature.RequiredComponent{ | ||
| IsRequired: apiutils.NewBoolPointer(true), | ||
| Containers: []apicommonv1.AgentContainerName{ | ||
| apicommonv1.SecurityAgentContainerName, | ||
| apicommonv1.SystemProbeContainerName, | ||
| }, | ||
| }, | ||
| } | ||
| } | ||
|
|
||
| return reqComp | ||
| } | ||
|
|
||
| // ManageDependencies allows a feature to manage its dependencies. | ||
| // Feature's dependencies should be added in the store. | ||
| func (f *cwsFeature) ManageDependencies(managers feature.ResourceManagers, components feature.RequiredComponents) error { | ||
| return nil | ||
| } | ||
|
|
||
| // ManageClusterAgent allows a feature to configure the ClusterAgent's corev1.PodTemplateSpec | ||
| // It should do nothing if the feature doesn't need to configure it. | ||
| func (f *cwsFeature) ManageClusterAgent(managers feature.PodTemplateManagers) error { | ||
| return nil | ||
| } | ||
|
|
||
| // ManageNodeAgent allows a feature to configure the Node Agent's corev1.PodTemplateSpec | ||
| // It should do nothing if the feature doesn't need to configure it. | ||
| func (f *cwsFeature) ManageNodeAgent(managers feature.PodTemplateManagers) error { | ||
| // annotations | ||
| managers.Annotation().AddAnnotation(apicommon.SystemProbeAppArmorAnnotationKey, apicommon.SystemProbeAppArmorAnnotationValue) | ||
|
|
||
| // security context capabilities | ||
| capabilities := []corev1.Capability{ | ||
| "SYS_ADMIN", | ||
| "SYS_RESOURCE", | ||
| "SYS_PTRACE", | ||
| "NET_ADMIN", | ||
| "NET_BROADCAST", | ||
| "NET_RAW", | ||
| "IPC_LOCK", | ||
| "CHOWN", | ||
| } | ||
| managers.SecurityContext().AddCapabilitiesToContainer(capabilities, apicommonv1.SystemProbeContainerName) | ||
|
|
||
| // envvars | ||
| enabledEnvVar := &corev1.EnvVar{ | ||
| Name: apicommon.DDRuntimeSecurityConfigEnabled, | ||
| Value: "true", | ||
| } | ||
| managers.EnvVar().AddEnvVarToContainer(apicommonv1.SecurityAgentContainerName, enabledEnvVar) | ||
| managers.EnvVar().AddEnvVarToContainer(apicommonv1.SystemProbeContainerName, enabledEnvVar) | ||
|
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| runtimeSocketEnvVar := &corev1.EnvVar{ | ||
| Name: apicommon.DDRuntimeSecurityConfigSocket, | ||
| Value: filepath.Join(apicommon.SystemProbeSocketVolumePath, "runtime-security.sock"), | ||
| } | ||
| managers.EnvVar().AddEnvVarToContainer(apicommonv1.SecurityAgentContainerName, runtimeSocketEnvVar) | ||
| managers.EnvVar().AddEnvVarToContainer(apicommonv1.SystemProbeContainerName, runtimeSocketEnvVar) | ||
|
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||
| if f.syscallMonitorEnabled { | ||
| monitorEnvVar := &corev1.EnvVar{ | ||
| Name: apicommon.DDRuntimeSecurityConfigSyscallMonitorEnabled, | ||
| Value: "true", | ||
| } | ||
| managers.EnvVar().AddEnvVarToContainer(apicommonv1.SecurityAgentContainerName, monitorEnvVar) | ||
| managers.EnvVar().AddEnvVarToContainer(apicommonv1.SystemProbeContainerName, monitorEnvVar) | ||
| } | ||
|
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||
| policiesDirEnvVar := &corev1.EnvVar{ | ||
| Name: apicommon.DDRuntimeSecurityConfigPoliciesDir, | ||
| Value: apicommon.SecurityAgentRuntimePoliciesDirVolumePath, | ||
| } | ||
| managers.EnvVar().AddEnvVarToContainer(apicommonv1.SystemProbeContainerName, policiesDirEnvVar) | ||
|
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||
| authTokenPathEnvVar := &corev1.EnvVar{ | ||
| Name: apicommon.DDAuthTokenFilePath, | ||
| Value: filepath.Join(apicommon.AuthVolumePath, "token"), | ||
| } | ||
| managers.EnvVar().AddEnvVarToContainer(apicommonv1.SystemProbeContainerName, authTokenPathEnvVar) | ||
|
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||
| hostRootEnvVar := &corev1.EnvVar{ | ||
| Name: apicommon.DDHostRootEnvVar, | ||
| Value: apicommon.HostRootMountPath, | ||
| } | ||
| managers.EnvVar().AddEnvVarToContainer(apicommonv1.SecurityAgentContainerName, hostRootEnvVar) | ||
|
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| volMountMgr := managers.VolumeMount() | ||
| volMgr := managers.Volume() | ||
|
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||
| // debugfs volume mount | ||
| debugfsVol, debugfsVolMount := volume.GetVolumes(apicommon.DebugfsVolumeName, apicommon.DebugfsPath, apicommon.DebugfsPath, false) | ||
| volMountMgr.AddVolumeMountToContainer(&debugfsVolMount, apicommonv1.SystemProbeContainerName) | ||
| volMgr.AddVolume(&debugfsVol) | ||
|
|
||
| // securityfs volume mount | ||
| securityfsVol, securityfsVolMount := volume.GetVolumes(apicommon.SecurityfsVolumeName, apicommon.SecurityfsVolumePath, apicommon.SecurityfsMountPath, true) | ||
| volMountMgr.AddVolumeMountToContainer(&securityfsVolMount, apicommonv1.SystemProbeContainerName) | ||
| volMgr.AddVolume(&securityfsVol) | ||
|
|
||
| // socket volume mount (needs write perms for the system probe container but not the others) | ||
| socketVol, socketVolMount := volume.GetVolumesEmptyDir(apicommon.SystemProbeSocketVolumeName, apicommon.SystemProbeSocketVolumePath, false) | ||
| volMountMgr.AddVolumeMountToContainer(&socketVolMount, apicommonv1.SystemProbeContainerName) | ||
|
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| _, socketVolMountReadOnly := volume.GetVolumesEmptyDir(apicommon.SystemProbeSocketVolumeName, apicommon.SystemProbeSocketVolumePath, true) | ||
| managers.VolumeMount().AddVolumeMountToContainer(&socketVolMountReadOnly, apicommonv1.SecurityAgentContainerName) | ||
| volMgr.AddVolume(&socketVol) | ||
|
|
||
| // procdir volume mount | ||
| procdirVol, procdirVolMount := volume.GetVolumes(apicommon.ProcdirVolumeName, apicommon.ProcdirHostPath, apicommon.ProcdirMountPath, true) | ||
| volMountMgr.AddVolumeMountToContainer(&procdirVolMount, apicommonv1.SystemProbeContainerName) | ||
| volMgr.AddVolume(&procdirVol) | ||
|
|
||
| // passwd volume mount | ||
| passwdVol, passwdVolMount := volume.GetVolumes(apicommon.PasswdVolumeName, apicommon.PasswdHostPath, apicommon.PasswdMountPath, true) | ||
| volMountMgr.AddVolumeMountToContainer(&passwdVolMount, apicommonv1.SystemProbeContainerName) | ||
| volMgr.AddVolume(&passwdVol) | ||
|
|
||
| // group volume mount | ||
| groupVol, groupVolMount := volume.GetVolumes(apicommon.GroupVolumeName, apicommon.GroupHostPath, apicommon.GroupMountPath, true) | ||
| volMountMgr.AddVolumeMountToContainer(&groupVolMount, apicommonv1.SystemProbeContainerName) | ||
| volMgr.AddVolume(&groupVol) | ||
|
|
||
| // osRelease volume mount | ||
| osReleaseVol, osReleaseVolMount := volume.GetVolumes(apicommon.SystemProbeOSReleaseDirVolumeName, apicommon.SystemProbeOSReleaseDirVolumePath, apicommon.SystemProbeOSReleaseDirMountPath, true) | ||
| volMountMgr.AddVolumeMountToContainer(&osReleaseVolMount, apicommonv1.SystemProbeContainerName) | ||
| volMgr.AddVolume(&osReleaseVol) | ||
|
|
||
| // hostroot volume mount | ||
| hostrootVol, hostrootVolMount := volume.GetVolumes(apicommon.HostRootVolumeName, apicommon.HostRootHostPath, apicommon.HostRootMountPath, true) | ||
| volMountMgr.AddVolumeMountToContainer(&hostrootVolMount, apicommonv1.SecurityAgentContainerName) | ||
| volMgr.AddVolume(&hostrootVol) | ||
|
|
||
| // custom runtime policies | ||
| if f.configMapConfig != nil { | ||
| cmVol, cmVolMount := volume.GetConfigMapVolumes( | ||
| f.configMapConfig, | ||
| f.configMapConfig.Name, | ||
| apicommon.SecurityAgentRuntimeCustomPoliciesVolumeName, | ||
| apicommon.SecurityAgentRuntimeCustomPoliciesVolumePath, | ||
| ) | ||
| volMountMgr.AddVolumeMountToContainers(&cmVolMount, []apicommonv1.AgentContainerName{apicommonv1.SecurityAgentContainerName, apicommonv1.SystemProbeContainerName}) | ||
| volMgr.AddVolume(&cmVol) | ||
|
|
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| managers.EnvVar().AddEnvVarToContainer(apicommonv1.SecurityAgentContainerName, policiesDirEnvVar) | ||
|
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| policiesVol, policiesVolMount := volume.GetVolumesEmptyDir(apicommon.SecurityAgentRuntimePoliciesDirVolumeName, apicommon.SecurityAgentRuntimePoliciesDirVolumePath, true) | ||
| volMountMgr.AddVolumeMountToContainers(&policiesVolMount, []apicommonv1.AgentContainerName{apicommonv1.SecurityAgentContainerName, apicommonv1.SystemProbeContainerName}) | ||
| volMgr.AddVolume(&policiesVol) | ||
| } | ||
|
|
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| return nil | ||
| } | ||
|
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||
| // ManageClusterChecksRunner allows a feature to configure the ClusterChecksRunner's corev1.PodTemplateSpec | ||
| // It should do nothing if the feature doesn't need to configure it. | ||
| func (f *cwsFeature) ManageClusterChecksRunner(managers feature.PodTemplateManagers) error { | ||
| return nil | ||
| } |
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