mirror of
https://github.com/shankar0123/certctl.git
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Initial scaffold: certificate control plane v0.1.0
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shankar0123
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package f5
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import (
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"context"
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"encoding/json"
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"fmt"
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"log/slog"
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"net/http"
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"time"
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"github.com/shankar0123/certctl/internal/connector/target"
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)
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// Config represents the F5 BIG-IP deployment target configuration.
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type Config struct {
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Host string `json:"host"` // F5 BIG-IP hostname or IP
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Port int `json:"port"` // F5 iControl REST API port (default 443)
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Username string `json:"username"` // Administrative username
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Password string `json:"password"` // Administrative password
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Partition string `json:"partition"` // F5 partition name (e.g., "Common")
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SSLProfile string `json:"ssl_profile"` // SSL profile name to update
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}
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// Connector implements the target.Connector interface for F5 BIG-IP load balancers.
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// This connector communicates with F5's iControl REST API to upload certificates and manage SSL profiles.
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//
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// TODO: Implement actual F5 iControl REST API communication.
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// The documented API endpoints and flow are:
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// - Authentication: POST /mgmt/shared/authn/login
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// - Upload certificate: POST /mgmt/tm/ltm/certificate
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// - Update SSL profile: PATCH /mgmt/tm/ltm/profile/client-ssl/{profile_name}
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// - Check SSL profile: GET /mgmt/tm/ltm/profile/client-ssl/{profile_name}
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type Connector struct {
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config *Config
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logger *slog.Logger
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client *http.Client
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}
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// New creates a new F5 target connector with the given configuration and logger.
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func New(config *Config, logger *slog.Logger) *Connector {
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return &Connector{
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config: config,
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logger: logger,
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client: &http.Client{
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Timeout: 30 * time.Second,
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// TODO: Configure proper TLS verification or skip for self-signed F5 certs
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},
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}
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}
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// ValidateConfig checks that the F5 BIG-IP is reachable and credentials are valid.
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// It attempts to authenticate to the F5 iControl REST API.
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//
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// TODO: Implement actual F5 authentication validation.
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func (c *Connector) ValidateConfig(ctx context.Context, rawConfig json.RawMessage) error {
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var cfg Config
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if err := json.Unmarshal(rawConfig, &cfg); err != nil {
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return fmt.Errorf("invalid F5 config: %w", err)
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}
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if cfg.Host == "" || cfg.Username == "" || cfg.Password == "" {
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return fmt.Errorf("F5 host, username, and password are required")
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}
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if cfg.Port == 0 {
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cfg.Port = 443 // Default HTTPS port
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}
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if cfg.Partition == "" {
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cfg.Partition = "Common"
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}
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c.logger.Info("validating F5 configuration",
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"host", cfg.Host,
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"port", cfg.Port,
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"partition", cfg.Partition)
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// TODO: Implement F5 authentication check
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// In production:
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// 1. POST to https://{host}:{port}/mgmt/shared/authn/login
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// 2. Send credentials in request body
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// 3. Verify response contains valid authentication token
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// 4. Optionally test connectivity to SSL profile endpoint
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c.logger.Warn("F5 validation not yet fully implemented",
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"host", cfg.Host)
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c.config = &cfg
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return nil
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}
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// DeployCertificate uploads a certificate to the F5 BIG-IP and updates the specified SSL profile.
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//
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// The F5 deployment process:
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// 1. Authenticate to iControl REST API using credentials
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// 2. Upload certificate PEM to /mgmt/tm/ltm/certificate
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// 3. Upload chain PEM as separate certificate if needed
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// 4. Update the target SSL profile to reference the new certificate
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// 5. Verify the profile was updated successfully
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//
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// TODO: Implement actual F5 iControl REST API calls.
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// API endpoints used:
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// - POST /mgmt/shared/authn/login (authentication)
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// - POST /mgmt/tm/ltm/certificate (upload cert)
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// - PATCH /mgmt/tm/ltm/profile/client-ssl/{SSLProfile} (update profile)
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func (c *Connector) DeployCertificate(ctx context.Context, request target.DeploymentRequest) (*target.DeploymentResult, error) {
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c.logger.Info("deploying certificate to F5 BIG-IP",
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"host", c.config.Host,
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"partition", c.config.Partition,
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"ssl_profile", c.config.SSLProfile)
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startTime := time.Now()
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// TODO: Implement F5 certificate deployment
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// In production:
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// 1. Authenticate to F5: POST /mgmt/shared/authn/login
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// 2. Create certificate object:
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// POST /mgmt/tm/ltm/certificate
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// Body: {"name": "certctl-cert-{timestamp}", "certificateText": "{CertPEM}"}
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// 3. If chain is provided, upload as separate certificate:
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// POST /mgmt/tm/ltm/certificate
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// Body: {"name": "certctl-chain-{timestamp}", "certificateText": "{ChainPEM}"}
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// 4. Update SSL profile:
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// PATCH /mgmt/tm/ltm/profile/client-ssl/{SSLProfile}
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// Body: {"certificate": "/Common/certctl-cert-{timestamp}"}
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// 5. Verify deployment by checking profile status
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deploymentDuration := time.Since(startTime)
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c.logger.Warn("F5 deployment not yet implemented",
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"host", c.config.Host,
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"ssl_profile", c.config.SSLProfile)
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return &target.DeploymentResult{
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Success: true,
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TargetAddress: fmt.Sprintf("%s:%d", c.config.Host, c.config.Port),
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DeploymentID: fmt.Sprintf("f5-%d", time.Now().Unix()),
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Message: "Certificate deployment to F5 initiated (stub)",
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DeployedAt: time.Now(),
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Metadata: map[string]string{
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"host": c.config.Host,
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"partition": c.config.Partition,
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"ssl_profile": c.config.SSLProfile,
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"duration_ms": fmt.Sprintf("%d", deploymentDuration.Milliseconds()),
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},
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}, nil
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}
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// ValidateDeployment verifies that the certificate is properly deployed on the F5 BIG-IP.
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// It checks the SSL profile configuration to ensure it references the correct certificate.
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//
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// TODO: Implement actual F5 validation via iControl REST API.
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// API endpoint used:
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// - GET /mgmt/tm/ltm/profile/client-ssl/{SSLProfile}
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func (c *Connector) ValidateDeployment(ctx context.Context, request target.ValidationRequest) (*target.ValidationResult, error) {
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c.logger.Info("validating F5 deployment",
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"certificate_id", request.CertificateID,
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"serial", request.Serial,
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"ssl_profile", c.config.SSLProfile)
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startTime := time.Now()
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// TODO: Implement F5 deployment validation
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// In production:
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// 1. Authenticate to F5: POST /mgmt/shared/authn/login
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// 2. Query SSL profile:
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// GET /mgmt/tm/ltm/profile/client-ssl/{SSLProfile}
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// 3. Verify the response includes the expected certificate name
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// 4. Optionally check certificate validity dates
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// 5. Verify the profile is in active use (no errors/warnings)
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validationDuration := time.Since(startTime)
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c.logger.Warn("F5 validation not yet implemented",
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"ssl_profile", c.config.SSLProfile)
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return &target.ValidationResult{
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Valid: true,
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Serial: request.Serial,
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TargetAddress: fmt.Sprintf("%s:%d", c.config.Host, c.config.Port),
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Message: "Certificate deployment validation initiated (stub)",
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ValidatedAt: time.Now(),
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Metadata: map[string]string{
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"host": c.config.Host,
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"ssl_profile": c.config.SSLProfile,
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"duration_ms": fmt.Sprintf("%d", validationDuration.Milliseconds()),
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},
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}, nil
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}
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