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feat: Add support for setting firewall rules (terraform-google-module…
…s#470) * Squash Commits Signed-off-by: Dev <Dev25@users.noreply.github.com> * Fix example Signed-off-by: Dev <Dev25@users.noreply.github.com> * Rename var + update README Signed-off-by: Dev <Dev25@users.noreply.github.com> * Set to false as default Signed-off-by: Dev <Dev25@users.noreply.github.com> * Enable firewall support in shared_vpc example Signed-off-by: Dev <Dev25@users.noreply.github.com> * Remove network datasource and make subnetwork conditional on firewall Signed-off-by: Dev <Dev25@users.noreply.github.com> * Fix attribute error Signed-off-by: Dev <Dev25@users.noreply.github.com>
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/** | ||
* Copyright 2018 Google LLC | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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{{ autogeneration_note }} | ||
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/****************************************** | ||
Match the gke-<CLUSTER>-<ID>-all INGRESS | ||
firewall rule created by GKE but for EGRESS | ||
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Required for clusters when VPCs enforce | ||
a default-deny egress rule | ||
*****************************************/ | ||
resource "google_compute_firewall" "intra_egress" { | ||
count = var.add_cluster_firewall_rules ? 1 : 0 | ||
name = "gke-${substr(var.name, 0, min(25, length(var.name)))}-intra-cluster-egress" | ||
description = "Managed by terraform gke module: Allow pods to communicate with each other and the master" | ||
project = local.network_project_id | ||
network = var.network | ||
priority = var.firewall_priority | ||
direction = "EGRESS" | ||
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target_tags = [local.cluster_network_tag] | ||
destination_ranges = [ | ||
local.cluster_endpoint_for_nodes, | ||
local.cluster_subnet_cidr, | ||
local.cluster_alias_ranges_cidr[var.ip_range_pods], | ||
] | ||
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# Allow all possible protocols | ||
allow { protocol = "tcp" } | ||
allow { protocol = "udp" } | ||
allow { protocol = "icmp" } | ||
allow { protocol = "sctp" } | ||
allow { protocol = "esp" } | ||
allow { protocol = "ah" } | ||
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depends_on = [ | ||
google_container_cluster.primary, | ||
] | ||
} | ||
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/****************************************** | ||
Allow GKE master to hit non 443 ports for | ||
Webhooks/Admission Controllers | ||
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https://github.com/kubernetes/kubernetes/issues/79739 | ||
*****************************************/ | ||
resource "google_compute_firewall" "master_webhooks" { | ||
count = var.add_cluster_firewall_rules ? 1 : 0 | ||
name = "gke-${substr(var.name, 0, min(25, length(var.name)))}-webhooks" | ||
description = "Managed by terraform gke module: Allow master to hit pods for admission controllers/webhooks" | ||
project = local.network_project_id | ||
network = var.network | ||
priority = var.firewall_priority | ||
direction = "INGRESS" | ||
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source_ranges = [local.cluster_endpoint_for_nodes] | ||
target_tags = [local.cluster_network_tag] | ||
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allow { | ||
protocol = "tcp" | ||
ports = var.firewall_inbound_ports | ||
} | ||
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depends_on = [ | ||
google_container_cluster.primary, | ||
] | ||
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} |
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/** | ||
* Copyright 2018 Google LLC | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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{{ autogeneration_note }} | ||
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data "google_compute_subnetwork" "gke_subnetwork" { | ||
provider = google | ||
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count = var.add_cluster_firewall_rules ? 1 : 0 | ||
name = var.subnetwork | ||
region = local.region | ||
project = local.network_project_id | ||
} |
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