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| 1 | +/* |
| 2 | +Copyright 2024 The Flux authors |
| 3 | +
|
| 4 | +Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | +you may not use this file except in compliance with the License. |
| 6 | +You may obtain a copy of the License at |
| 7 | +
|
| 8 | + http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | +
|
| 10 | +Unless required by applicable law or agreed to in writing, software |
| 11 | +distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | +See the License for the specific language governing permissions and |
| 14 | +limitations under the License. |
| 15 | +*/ |
| 16 | + |
| 17 | +package v1 |
| 18 | + |
| 19 | +import ( |
| 20 | + "time" |
| 21 | + |
| 22 | + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| 23 | + |
| 24 | + "github.com/fluxcd/pkg/apis/acl" |
| 25 | + "github.com/fluxcd/pkg/apis/meta" |
| 26 | +) |
| 27 | + |
| 28 | +const ( |
| 29 | + // BucketKind is the string representation of a Bucket. |
| 30 | + BucketKind = "Bucket" |
| 31 | +) |
| 32 | + |
| 33 | +const ( |
| 34 | + // BucketProviderGeneric for any S3 API compatible storage Bucket. |
| 35 | + BucketProviderGeneric string = "generic" |
| 36 | + // BucketProviderAmazon for an AWS S3 object storage Bucket. |
| 37 | + // Provides support for retrieving credentials from the AWS EC2 service. |
| 38 | + BucketProviderAmazon string = "aws" |
| 39 | + // BucketProviderGoogle for a Google Cloud Storage Bucket. |
| 40 | + // Provides support for authentication using a workload identity. |
| 41 | + BucketProviderGoogle string = "gcp" |
| 42 | + // BucketProviderAzure for an Azure Blob Storage Bucket. |
| 43 | + // Provides support for authentication using a Service Principal, |
| 44 | + // Managed Identity or Shared Key. |
| 45 | + BucketProviderAzure string = "azure" |
| 46 | +) |
| 47 | + |
| 48 | +// BucketSpec specifies the required configuration to produce an Artifact for |
| 49 | +// an object storage bucket. |
| 50 | +// +kubebuilder:validation:XValidation:rule="self.provider == 'aws' || self.provider == 'generic' || !has(self.sts)", message="STS configuration is only supported for the 'aws' and 'generic' Bucket providers" |
| 51 | +// +kubebuilder:validation:XValidation:rule="self.provider != 'aws' || !has(self.sts) || self.sts.provider == 'aws'", message="'aws' is the only supported STS provider for the 'aws' Bucket provider" |
| 52 | +// +kubebuilder:validation:XValidation:rule="self.provider != 'generic' || !has(self.sts) || self.sts.provider == 'ldap'", message="'ldap' is the only supported STS provider for the 'generic' Bucket provider" |
| 53 | +// +kubebuilder:validation:XValidation:rule="!has(self.sts) || self.sts.provider != 'aws' || !has(self.sts.secretRef)", message="spec.sts.secretRef is not required for the 'aws' STS provider" |
| 54 | +// +kubebuilder:validation:XValidation:rule="!has(self.sts) || self.sts.provider != 'aws' || !has(self.sts.certSecretRef)", message="spec.sts.certSecretRef is not required for the 'aws' STS provider" |
| 55 | +type BucketSpec struct { |
| 56 | + // Provider of the object storage bucket. |
| 57 | + // Defaults to 'generic', which expects an S3 (API) compatible object |
| 58 | + // storage. |
| 59 | + // +kubebuilder:validation:Enum=generic;aws;gcp;azure |
| 60 | + // +kubebuilder:default:=generic |
| 61 | + // +optional |
| 62 | + Provider string `json:"provider,omitempty"` |
| 63 | + |
| 64 | + // BucketName is the name of the object storage bucket. |
| 65 | + // +required |
| 66 | + BucketName string `json:"bucketName"` |
| 67 | + |
| 68 | + // Endpoint is the object storage address the BucketName is located at. |
| 69 | + // +required |
| 70 | + Endpoint string `json:"endpoint"` |
| 71 | + |
| 72 | + // STS specifies the required configuration to use a Security Token |
| 73 | + // Service for fetching temporary credentials to authenticate in a |
| 74 | + // Bucket provider. |
| 75 | + // |
| 76 | + // This field is only supported for the `aws` and `generic` providers. |
| 77 | + // +optional |
| 78 | + STS *BucketSTSSpec `json:"sts,omitempty"` |
| 79 | + |
| 80 | + // Insecure allows connecting to a non-TLS HTTP Endpoint. |
| 81 | + // +optional |
| 82 | + Insecure bool `json:"insecure,omitempty"` |
| 83 | + |
| 84 | + // Region of the Endpoint where the BucketName is located in. |
| 85 | + // +optional |
| 86 | + Region string `json:"region,omitempty"` |
| 87 | + |
| 88 | + // Prefix to use for server-side filtering of files in the Bucket. |
| 89 | + // +optional |
| 90 | + Prefix string `json:"prefix,omitempty"` |
| 91 | + |
| 92 | + // SecretRef specifies the Secret containing authentication credentials |
| 93 | + // for the Bucket. |
| 94 | + // +optional |
| 95 | + SecretRef *meta.LocalObjectReference `json:"secretRef,omitempty"` |
| 96 | + |
| 97 | + // CertSecretRef can be given the name of a Secret containing |
| 98 | + // either or both of |
| 99 | + // |
| 100 | + // - a PEM-encoded client certificate (`tls.crt`) and private |
| 101 | + // key (`tls.key`); |
| 102 | + // - a PEM-encoded CA certificate (`ca.crt`) |
| 103 | + // |
| 104 | + // and whichever are supplied, will be used for connecting to the |
| 105 | + // bucket. The client cert and key are useful if you are |
| 106 | + // authenticating with a certificate; the CA cert is useful if |
| 107 | + // you are using a self-signed server certificate. The Secret must |
| 108 | + // be of type `Opaque` or `kubernetes.io/tls`. |
| 109 | + // |
| 110 | + // This field is only supported for the `generic` provider. |
| 111 | + // +optional |
| 112 | + CertSecretRef *meta.LocalObjectReference `json:"certSecretRef,omitempty"` |
| 113 | + |
| 114 | + // ProxySecretRef specifies the Secret containing the proxy configuration |
| 115 | + // to use while communicating with the Bucket server. |
| 116 | + // +optional |
| 117 | + ProxySecretRef *meta.LocalObjectReference `json:"proxySecretRef,omitempty"` |
| 118 | + |
| 119 | + // Interval at which the Bucket Endpoint is checked for updates. |
| 120 | + // This interval is approximate and may be subject to jitter to ensure |
| 121 | + // efficient use of resources. |
| 122 | + // +kubebuilder:validation:Type=string |
| 123 | + // +kubebuilder:validation:Pattern="^([0-9]+(\\.[0-9]+)?(ms|s|m|h))+$" |
| 124 | + // +required |
| 125 | + Interval metav1.Duration `json:"interval"` |
| 126 | + |
| 127 | + // Timeout for fetch operations, defaults to 60s. |
| 128 | + // +kubebuilder:default="60s" |
| 129 | + // +kubebuilder:validation:Type=string |
| 130 | + // +kubebuilder:validation:Pattern="^([0-9]+(\\.[0-9]+)?(ms|s|m))+$" |
| 131 | + // +optional |
| 132 | + Timeout *metav1.Duration `json:"timeout,omitempty"` |
| 133 | + |
| 134 | + // Ignore overrides the set of excluded patterns in the .sourceignore format |
| 135 | + // (which is the same as .gitignore). If not provided, a default will be used, |
| 136 | + // consult the documentation for your version to find out what those are. |
| 137 | + // +optional |
| 138 | + Ignore *string `json:"ignore,omitempty"` |
| 139 | + |
| 140 | + // Suspend tells the controller to suspend the reconciliation of this |
| 141 | + // Bucket. |
| 142 | + // +optional |
| 143 | + Suspend bool `json:"suspend,omitempty"` |
| 144 | + |
| 145 | + // AccessFrom specifies an Access Control List for allowing cross-namespace |
| 146 | + // references to this object. |
| 147 | + // NOTE: Not implemented, provisional as of https://github.com/fluxcd/flux2/pull/2092 |
| 148 | + // +optional |
| 149 | + AccessFrom *acl.AccessFrom `json:"accessFrom,omitempty"` |
| 150 | +} |
| 151 | + |
| 152 | +// BucketSTSSpec specifies the required configuration to use a Security Token |
| 153 | +// Service for fetching temporary credentials to authenticate in a Bucket |
| 154 | +// provider. |
| 155 | +type BucketSTSSpec struct { |
| 156 | + // Provider of the Security Token Service. |
| 157 | + // +kubebuilder:validation:Enum=aws;ldap |
| 158 | + // +required |
| 159 | + Provider string `json:"provider"` |
| 160 | + |
| 161 | + // Endpoint is the HTTP/S endpoint of the Security Token Service from |
| 162 | + // where temporary credentials will be fetched. |
| 163 | + // +required |
| 164 | + // +kubebuilder:validation:Pattern="^(http|https)://.*$" |
| 165 | + Endpoint string `json:"endpoint"` |
| 166 | + |
| 167 | + // SecretRef specifies the Secret containing authentication credentials |
| 168 | + // for the STS endpoint. This Secret must contain the fields `username` |
| 169 | + // and `password` and is supported only for the `ldap` provider. |
| 170 | + // +optional |
| 171 | + SecretRef *meta.LocalObjectReference `json:"secretRef,omitempty"` |
| 172 | + |
| 173 | + // CertSecretRef can be given the name of a Secret containing |
| 174 | + // either or both of |
| 175 | + // |
| 176 | + // - a PEM-encoded client certificate (`tls.crt`) and private |
| 177 | + // key (`tls.key`); |
| 178 | + // - a PEM-encoded CA certificate (`ca.crt`) |
| 179 | + // |
| 180 | + // and whichever are supplied, will be used for connecting to the |
| 181 | + // STS endpoint. The client cert and key are useful if you are |
| 182 | + // authenticating with a certificate; the CA cert is useful if |
| 183 | + // you are using a self-signed server certificate. The Secret must |
| 184 | + // be of type `Opaque` or `kubernetes.io/tls`. |
| 185 | + // |
| 186 | + // This field is only supported for the `ldap` provider. |
| 187 | + // +optional |
| 188 | + CertSecretRef *meta.LocalObjectReference `json:"certSecretRef,omitempty"` |
| 189 | +} |
| 190 | + |
| 191 | +// BucketStatus records the observed state of a Bucket. |
| 192 | +type BucketStatus struct { |
| 193 | + // ObservedGeneration is the last observed generation of the Bucket object. |
| 194 | + // +optional |
| 195 | + ObservedGeneration int64 `json:"observedGeneration,omitempty"` |
| 196 | + |
| 197 | + // Conditions holds the conditions for the Bucket. |
| 198 | + // +optional |
| 199 | + Conditions []metav1.Condition `json:"conditions,omitempty"` |
| 200 | + |
| 201 | + // URL is the dynamic fetch link for the latest Artifact. |
| 202 | + // It is provided on a "best effort" basis, and using the precise |
| 203 | + // BucketStatus.Artifact data is recommended. |
| 204 | + // +optional |
| 205 | + URL string `json:"url,omitempty"` |
| 206 | + |
| 207 | + // Artifact represents the last successful Bucket reconciliation. |
| 208 | + // +optional |
| 209 | + Artifact *Artifact `json:"artifact,omitempty"` |
| 210 | + |
| 211 | + // ObservedIgnore is the observed exclusion patterns used for constructing |
| 212 | + // the source artifact. |
| 213 | + // +optional |
| 214 | + ObservedIgnore *string `json:"observedIgnore,omitempty"` |
| 215 | + |
| 216 | + meta.ReconcileRequestStatus `json:",inline"` |
| 217 | +} |
| 218 | + |
| 219 | +const ( |
| 220 | + // BucketOperationSucceededReason signals that the Bucket listing and fetch |
| 221 | + // operations succeeded. |
| 222 | + BucketOperationSucceededReason string = "BucketOperationSucceeded" |
| 223 | + |
| 224 | + // BucketOperationFailedReason signals that the Bucket listing or fetch |
| 225 | + // operations failed. |
| 226 | + BucketOperationFailedReason string = "BucketOperationFailed" |
| 227 | +) |
| 228 | + |
| 229 | +// GetConditions returns the status conditions of the object. |
| 230 | +func (in *Bucket) GetConditions() []metav1.Condition { |
| 231 | + return in.Status.Conditions |
| 232 | +} |
| 233 | + |
| 234 | +// SetConditions sets the status conditions on the object. |
| 235 | +func (in *Bucket) SetConditions(conditions []metav1.Condition) { |
| 236 | + in.Status.Conditions = conditions |
| 237 | +} |
| 238 | + |
| 239 | +// GetRequeueAfter returns the duration after which the source must be reconciled again. |
| 240 | +func (in *Bucket) GetRequeueAfter() time.Duration { |
| 241 | + return in.Spec.Interval.Duration |
| 242 | +} |
| 243 | + |
| 244 | +// GetArtifact returns the latest artifact from the source if present in the status sub-resource. |
| 245 | +func (in *Bucket) GetArtifact() *Artifact { |
| 246 | + return in.Status.Artifact |
| 247 | +} |
| 248 | + |
| 249 | +// +genclient |
| 250 | +// +kubebuilder:storageversion |
| 251 | +// +kubebuilder:object:root=true |
| 252 | +// +kubebuilder:subresource:status |
| 253 | +// +kubebuilder:printcolumn:name="Endpoint",type=string,JSONPath=`.spec.endpoint` |
| 254 | +// +kubebuilder:printcolumn:name="Age",type="date",JSONPath=".metadata.creationTimestamp",description="" |
| 255 | +// +kubebuilder:printcolumn:name="Ready",type="string",JSONPath=".status.conditions[?(@.type==\"Ready\")].status",description="" |
| 256 | +// +kubebuilder:printcolumn:name="Status",type="string",JSONPath=".status.conditions[?(@.type==\"Ready\")].message",description="" |
| 257 | + |
| 258 | +// Bucket is the Schema for the buckets API. |
| 259 | +type Bucket struct { |
| 260 | + metav1.TypeMeta `json:",inline"` |
| 261 | + metav1.ObjectMeta `json:"metadata,omitempty"` |
| 262 | + |
| 263 | + Spec BucketSpec `json:"spec,omitempty"` |
| 264 | + // +kubebuilder:default={"observedGeneration":-1} |
| 265 | + Status BucketStatus `json:"status,omitempty"` |
| 266 | +} |
| 267 | + |
| 268 | +// BucketList contains a list of Bucket objects. |
| 269 | +// +kubebuilder:object:root=true |
| 270 | +type BucketList struct { |
| 271 | + metav1.TypeMeta `json:",inline"` |
| 272 | + metav1.ListMeta `json:"metadata,omitempty"` |
| 273 | + Items []Bucket `json:"items"` |
| 274 | +} |
| 275 | + |
| 276 | +func init() { |
| 277 | + SchemeBuilder.Register(&Bucket{}, &BucketList{}) |
| 278 | +} |
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