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allow robot tokens to be synced to Vault
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| package publisher | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| "github.com/kubermatic-labs/aquayman/pkg/config" | ||
| ) | ||
|
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| type Publisher interface { | ||
| UpdateRobot(ctx context.Context, robot *config.RobotConfig, token string) error | ||
| DeleteRobot(ctx context.Context, robot *config.RobotConfig) error | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| package publisher | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "strings" | ||
|
|
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| "github.com/hashicorp/vault/api" | ||
| "github.com/kubermatic-labs/aquayman/pkg/config" | ||
| ) | ||
|
|
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| type Vault struct { | ||
| client *api.Client | ||
| org string | ||
| } | ||
|
|
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| // NewVaultPublisher relies on VAULT_ADDR and VAULT_TOKEN env | ||
| // variables be set. | ||
| func NewVaultPublisher(organization string) (*Vault, error) { | ||
| client, err := api.NewClient(nil) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("could not build Vault client: %w", err) | ||
| } | ||
|
|
||
| return &Vault{ | ||
| client: client, | ||
| org: organization, | ||
| }, nil | ||
| } | ||
|
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| func (v *Vault) UpdateRobot(ctx context.Context, robot *config.RobotConfig, token string) error { | ||
| if robot.VaultSecret == "" { | ||
| return nil | ||
| } | ||
|
|
||
| addr, err := v.getAddress(robot) | ||
| if err != nil { | ||
| return fmt.Errorf("invalid configuration: %w", err) | ||
| } | ||
|
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| // fetch current state, so we do not need to bump if there are no changes to the token | ||
| secret, err := v.client.Logical().Read(addr.path) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to read from Vault: %w", err) | ||
| } | ||
|
|
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| secretUpToDate := false | ||
| existingData := map[string]interface{}{} | ||
|
|
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| if secret != nil { | ||
| // the secrets are wrapped in a "data" field, | ||
| // that's just how kv stores in Vault work | ||
|
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| if data, exists := secret.Data["data"]; exists { | ||
| if m, ok := data.(map[string]interface{}); ok { | ||
| existingData = m | ||
|
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| if value, exists := m[addr.key]; exists { | ||
| if svalue, ok := value.(string); ok { | ||
| secretUpToDate = svalue == token | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
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| if !secretUpToDate { | ||
| existingData[addr.key] = token | ||
| secret.Data["data"] = existingData | ||
|
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| if _, err := v.client.Logical().Write(addr.path, secret.Data); err != nil { | ||
| return fmt.Errorf("failed to update Vault: %w", err) | ||
| } | ||
| } | ||
|
|
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| return nil | ||
| } | ||
|
|
||
| func (v *Vault) DeleteRobot(ctx context.Context, robot *config.RobotConfig) error { | ||
| if robot.VaultSecret == "" { | ||
| return nil | ||
| } | ||
|
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| addr, err := v.getAddress(robot) | ||
| if err != nil { | ||
| return fmt.Errorf("invalid configuration: %w", err) | ||
| } | ||
|
|
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| // fetch current state, so we do not need to bump if there are no changes to the token | ||
| secret, err := v.client.Logical().Read(addr.path) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to read from Vault: %w", err) | ||
| } | ||
|
|
||
| if secret == nil { | ||
| return nil | ||
| } | ||
|
|
||
| // the secrets are wrapped in a "data" field, | ||
| // that's just how kv stores in Vault work | ||
|
|
||
| if data, exists := secret.Data["data"]; exists { | ||
| if m, ok := data.(map[string]interface{}); ok { | ||
| if _, exists := m[addr.key]; exists { | ||
| delete(m, addr.key) | ||
|
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| secret.Data["data"] = m | ||
|
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| if _, err := v.client.Logical().Write(addr.path, secret.Data); err != nil { | ||
| return fmt.Errorf("failed to update Vault: %w", err) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| return nil | ||
| } | ||
|
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| type address struct { | ||
| path string | ||
| key string | ||
| } | ||
|
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| func (v *Vault) getAddress(robot *config.RobotConfig) (*address, error) { | ||
| parts := strings.Split(robot.VaultSecret, "#") | ||
| if len(parts) > 2 { | ||
| return nil, fmt.Errorf("invalid path %q: must not contain more than one # symbol", robot.VaultSecret) | ||
| } | ||
|
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| a := address{ | ||
| path: parts[0], | ||
| key: fmt.Sprintf("quay.io-%s-%s-token", v.org, robot.Name), | ||
| } | ||
|
|
||
| if len(parts) > 1 { | ||
| a.key = parts[1] | ||
| } | ||
|
|
||
| return &a, nil | ||
| } |
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