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Add Support for Azure WAL-G Backups (#1537)

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This commit adds support for using an Azure storage account as a backup
location.

It uses the existing GCS functionality as a reference for what to do,
and follows the example set by GCS as closely as possible.

The decision to name the cloud provider key "aws_or_gcp" is unfortunate
while adding support for Azure, but I have left it alone to allow for
this changeset to be backwards compatible.
This commit is contained in:
Aaron Peschel
2021-08-26 14:59:03 +02:00
committed by GitHub
parent 2d2ce6197b
commit 1dd0cd9691
11 changed files with 89 additions and 0 deletions
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pkg/apis/acid.zalan.do/v1/operator_configuration_type.go
+1
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@@ -132,6 +132,7 @@ type AWSGCPConfiguration struct {
AWSRegion string `json:"aws_region,omitempty"`
WALGSBucket string `json:"wal_gs_bucket,omitempty"`
GCPCredentials string `json:"gcp_credentials,omitempty"`
WALAZStorageAccount string `json:"wal_az_storage_account,omitempty"`
LogS3Bucket string `json:"log_s3_bucket,omitempty"`
KubeIAMRole string `json:"kube_iam_role,omitempty"`
AdditionalSecretMount string `json:"additional_secret_mount,omitempty"`
pkg/cluster/k8sres.go
+14
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@@ -798,6 +798,12 @@ func (c *Cluster) generateSpiloPodEnvVars(uid types.UID, spiloConfiguration stri
envVars = append(envVars, v1.EnvVar{Name: "WAL_BUCKET_SCOPE_PREFIX", Value: ""})
}
if c.OpConfig.WALAZStorageAccount != "" {
envVars = append(envVars, v1.EnvVar{Name: "AZURE_STORAGE_ACCOUNT", Value: c.OpConfig.WALAZStorageAccount})
envVars = append(envVars, v1.EnvVar{Name: "WAL_BUCKET_SCOPE_SUFFIX", Value: getBucketScopeSuffix(string(uid))})
envVars = append(envVars, v1.EnvVar{Name: "WAL_BUCKET_SCOPE_PREFIX", Value: ""})
}
if c.OpConfig.GCPCredentials != "" {
envVars = append(envVars, v1.EnvVar{Name: "GOOGLE_APPLICATION_CREDENTIALS", Value: c.OpConfig.GCPCredentials})
}
@@ -1805,6 +1811,14 @@ func (c *Cluster) generateCloneEnvironment(description *acidv1.CloneDescription)
},
}
result = append(result, envs...)
} else if c.OpConfig.WALAZStorageAccount != "" {
envs := []v1.EnvVar{
{
Name: "CLONE_AZURE_STORAGE_ACCOUNT",
Value: c.OpConfig.WALAZStorageAccount,
},
}
result = append(result, envs...)
} else {
c.logger.Error("Cannot figure out S3 or GS bucket. Both are empty.")
}
pkg/controller/operator_config.go
+1
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@@ -146,6 +146,7 @@ func (c *Controller) importConfigurationFromCRD(fromCRD *acidv1.OperatorConfigur
result.KubeIAMRole = fromCRD.AWSGCP.KubeIAMRole
result.WALGSBucket = fromCRD.AWSGCP.WALGSBucket
result.GCPCredentials = fromCRD.AWSGCP.GCPCredentials
result.WALAZStorageAccount = fromCRD.AWSGCP.WALAZStorageAccount
result.AdditionalSecretMount = fromCRD.AWSGCP.AdditionalSecretMount
result.AdditionalSecretMountPath = util.Coalesce(fromCRD.AWSGCP.AdditionalSecretMountPath, "/meta/credentials")
result.EnableEBSGp3Migration = fromCRD.AWSGCP.EnableEBSGp3Migration
pkg/util/config/config.go
+1
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@@ -167,6 +167,7 @@ type Config struct {
KubeIAMRole string `name:"kube_iam_role"`
WALGSBucket string `name:"wal_gs_bucket"`
GCPCredentials string `name:"gcp_credentials"`
WALAZStorageAccount string `name:"wal_az_storage_account"`
AdditionalSecretMount string `name:"additional_secret_mount"`
AdditionalSecretMountPath string `name:"additional_secret_mount_path" default:"/meta/credentials"`
EnableEBSGp3Migration bool `name:"enable_ebs_gp3_migration" default:"false"`