|
| 1 | +package google |
| 2 | + |
| 3 | +import ( |
| 4 | + "fmt" |
| 5 | + "github.com/hashicorp/terraform/helper/schema" |
| 6 | + "google.golang.org/api/compute/v1" |
| 7 | + "google.golang.org/api/googleapi" |
| 8 | + "log" |
| 9 | + "regexp" |
| 10 | +) |
| 11 | + |
| 12 | +const peerNetworkLinkRegex = "projects/(" + ProjectRegex + ")/global/networks/((?:[a-z](?:[-a-z0-9]*[a-z0-9])?))$" |
| 13 | + |
| 14 | +func resourceComputeNetworkPeering() *schema.Resource { |
| 15 | + return &schema.Resource{ |
| 16 | + Create: resourceComputeNetworkPeeringCreate, |
| 17 | + Read: resourceComputeNetworkPeeringRead, |
| 18 | + Delete: resourceComputeNetworkPeeringDelete, |
| 19 | + |
| 20 | + Schema: map[string]*schema.Schema{ |
| 21 | + "name": &schema.Schema{ |
| 22 | + Type: schema.TypeString, |
| 23 | + Required: true, |
| 24 | + ForceNew: true, |
| 25 | + ValidateFunc: validateGCPName, |
| 26 | + }, |
| 27 | + "network": &schema.Schema{ |
| 28 | + Type: schema.TypeString, |
| 29 | + Required: true, |
| 30 | + ForceNew: true, |
| 31 | + ValidateFunc: validateRegexp(peerNetworkLinkRegex), |
| 32 | + DiffSuppressFunc: peerNetworkLinkDiffSuppress, |
| 33 | + }, |
| 34 | + "peer_network": &schema.Schema{ |
| 35 | + Type: schema.TypeString, |
| 36 | + Required: true, |
| 37 | + ForceNew: true, |
| 38 | + ValidateFunc: validateRegexp(peerNetworkLinkRegex), |
| 39 | + DiffSuppressFunc: peerNetworkLinkDiffSuppress, |
| 40 | + }, |
| 41 | + "auto_create_routes": &schema.Schema{ |
| 42 | + Type: schema.TypeBool, |
| 43 | + ForceNew: true, |
| 44 | + Optional: true, |
| 45 | + Default: true, |
| 46 | + }, |
| 47 | + "state": &schema.Schema{ |
| 48 | + Type: schema.TypeString, |
| 49 | + Computed: true, |
| 50 | + }, |
| 51 | + "state_details": &schema.Schema{ |
| 52 | + Type: schema.TypeString, |
| 53 | + Computed: true, |
| 54 | + }, |
| 55 | + }, |
| 56 | + } |
| 57 | +} |
| 58 | + |
| 59 | +func resourceComputeNetworkPeeringCreate(d *schema.ResourceData, meta interface{}) error { |
| 60 | + config := meta.(*Config) |
| 61 | + |
| 62 | + err := addPeering(config, d) |
| 63 | + if err != nil { |
| 64 | + return err |
| 65 | + } |
| 66 | + |
| 67 | + peeringName := d.Get("name").(string) |
| 68 | + networkName := getNameFromNetworkLink(d.Get("network").(string)) |
| 69 | + |
| 70 | + d.SetId(fmt.Sprintf("%s/%s", networkName, peeringName)) |
| 71 | + |
| 72 | + return resourceComputeNetworkPeeringRead(d, meta) |
| 73 | +} |
| 74 | + |
| 75 | +func resourceComputeNetworkPeeringRead(d *schema.ResourceData, meta interface{}) error { |
| 76 | + config := meta.(*Config) |
| 77 | + |
| 78 | + project, err := getProject(d, config) |
| 79 | + if err != nil { |
| 80 | + return err |
| 81 | + } |
| 82 | + |
| 83 | + peeringName := d.Get("name").(string) |
| 84 | + networkLink := d.Get("network").(string) |
| 85 | + networkName := getNameFromNetworkLink(networkLink) |
| 86 | + |
| 87 | + network, err := config.clientCompute.Networks.Get(project, networkName).Do() |
| 88 | + if err != nil { |
| 89 | + return handleNotFoundError(err, d, fmt.Sprintf("Network %q", networkName)) |
| 90 | + } |
| 91 | + |
| 92 | + peering := findPeeringFromNetwork(network, peeringName) |
| 93 | + if peering == nil { |
| 94 | + log.Printf("[WARN] Removing network peering %s from network %s because it's gone", peeringName, networkName) |
| 95 | + d.SetId("") |
| 96 | + return nil |
| 97 | + } |
| 98 | + |
| 99 | + // No need to set the `name` and `network` fields. We use both of them to find the peering. |
| 100 | + // If they change on GCP, we wouldn't have been able to find the peering in the first place. |
| 101 | + d.Set("peer_network", peering.Network) |
| 102 | + d.Set("auto_create_routes", peering.AutoCreateRoutes) |
| 103 | + d.Set("state", peering.State) |
| 104 | + d.Set("state_details", peering.StateDetails) |
| 105 | + |
| 106 | + return nil |
| 107 | +} |
| 108 | + |
| 109 | +func resourceComputeNetworkPeeringDelete(d *schema.ResourceData, meta interface{}) error { |
| 110 | + config := meta.(*Config) |
| 111 | + |
| 112 | + // Remove the `network` to `peer_network` peering |
| 113 | + err := removePeering(config, d) |
| 114 | + if err != nil { |
| 115 | + return err |
| 116 | + } |
| 117 | + |
| 118 | + return nil |
| 119 | +} |
| 120 | + |
| 121 | +func findPeeringFromNetwork(network *compute.Network, peeringName string) *compute.NetworkPeering { |
| 122 | + for _, p := range network.Peerings { |
| 123 | + if p.Name == peeringName { |
| 124 | + return p |
| 125 | + } |
| 126 | + } |
| 127 | + return nil |
| 128 | +} |
| 129 | + |
| 130 | +func addPeering(config *Config, d *schema.ResourceData) error { |
| 131 | + project, err := getProject(d, config) |
| 132 | + if err != nil { |
| 133 | + return err |
| 134 | + } |
| 135 | + |
| 136 | + name := d.Get("name").(string) |
| 137 | + networkLink := d.Get("network").(string) |
| 138 | + peerNetworkLink := d.Get("peer_network").(string) |
| 139 | + autoCreateRoutes := d.Get("auto_create_routes").(bool) |
| 140 | + networkName := getNameFromNetworkLink(networkLink) |
| 141 | + |
| 142 | + request := &compute.NetworksAddPeeringRequest{ |
| 143 | + Name: name, |
| 144 | + PeerNetwork: peerNetworkLink, |
| 145 | + AutoCreateRoutes: autoCreateRoutes, |
| 146 | + } |
| 147 | + |
| 148 | + addOp, err := config.clientCompute.Networks.AddPeering(project, networkName, request).Do() |
| 149 | + if err != nil { |
| 150 | + return fmt.Errorf("Error adding network peering: %s", err) |
| 151 | + } |
| 152 | + |
| 153 | + err = computeOperationWait(config, addOp, project, "Adding Network Peering") |
| 154 | + if err != nil { |
| 155 | + return err |
| 156 | + } |
| 157 | + |
| 158 | + return nil |
| 159 | +} |
| 160 | + |
| 161 | +func removePeering(config *Config, d *schema.ResourceData) error { |
| 162 | + project, err := getProject(d, config) |
| 163 | + if err != nil { |
| 164 | + return err |
| 165 | + } |
| 166 | + |
| 167 | + name := d.Get("name").(string) |
| 168 | + networkLink := d.Get("network").(string) |
| 169 | + peerNetworkLink := d.Get("peer_network").(string) |
| 170 | + networkName := getNameFromNetworkLink(networkLink) |
| 171 | + peerNetworkName := getNameFromNetworkLink(peerNetworkLink) |
| 172 | + |
| 173 | + request := &compute.NetworksRemovePeeringRequest{ |
| 174 | + Name: name, |
| 175 | + } |
| 176 | + |
| 177 | + // Only one delete peering operation at a time can be performed inside any peered VPCs. |
| 178 | + peeringLockName := getNetworkPeeringLockName(networkName, peerNetworkName) |
| 179 | + mutexKV.Lock(peeringLockName) |
| 180 | + defer mutexKV.Unlock(peeringLockName) |
| 181 | + |
| 182 | + removeOp, err := config.clientCompute.Networks.RemovePeering(project, networkName, request).Do() |
| 183 | + if err != nil { |
| 184 | + if gerr, ok := err.(*googleapi.Error); ok && gerr.Code == 404 { |
| 185 | + log.Printf("[WARN] Peering `%s` already removed from network `%s`", name, networkName) |
| 186 | + } else { |
| 187 | + return fmt.Errorf("Error removing peering `%s` from network `%s`: %s", name, networkName, err) |
| 188 | + } |
| 189 | + } else { |
| 190 | + err = computeOperationWait(config, removeOp, project, "Removing Network Peering") |
| 191 | + if err != nil { |
| 192 | + return err |
| 193 | + } |
| 194 | + } |
| 195 | + |
| 196 | + return nil |
| 197 | +} |
| 198 | + |
| 199 | +func getNameFromNetworkLink(network string) string { |
| 200 | + r := regexp.MustCompile(peerNetworkLinkRegex) |
| 201 | + |
| 202 | + m := r.FindStringSubmatch(network) |
| 203 | + return m[2] |
| 204 | +} |
| 205 | + |
| 206 | +func peerNetworkLinkDiffSuppress(k, old, new string, d *schema.ResourceData) bool { |
| 207 | + r := regexp.MustCompile(peerNetworkLinkRegex) |
| 208 | + |
| 209 | + m := r.FindStringSubmatch(old) |
| 210 | + if len(m) != 3 { |
| 211 | + return false |
| 212 | + } |
| 213 | + oldProject, oldPeeringNetworkName := m[1], m[2] |
| 214 | + |
| 215 | + m = r.FindStringSubmatch(new) |
| 216 | + if len(m) != 3 { |
| 217 | + return false |
| 218 | + } |
| 219 | + newProject, newPeeringNetworkName := m[1], m[2] |
| 220 | + |
| 221 | + if oldProject == newProject && oldPeeringNetworkName == newPeeringNetworkName { |
| 222 | + return true |
| 223 | + } |
| 224 | + return false |
| 225 | +} |
| 226 | + |
| 227 | +func getNetworkPeeringLockName(networkName, peerNetworkName string) string { |
| 228 | + return fmt.Sprintf("network_peering/%s/%s") |
| 229 | +} |
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