consul/testing/deployer/sprawl/internal/tfgen/agent.go

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[COMPLIANCE] License changes (#18443) * Adding explicit MPL license for sub-package This directory and its subdirectories (packages) contain files licensed with the MPLv2 `LICENSE` file in this directory and are intentionally licensed separately from the BSL `LICENSE` file at the root of this repository. * Adding explicit MPL license for sub-package This directory and its subdirectories (packages) contain files licensed with the MPLv2 `LICENSE` file in this directory and are intentionally licensed separately from the BSL `LICENSE` file at the root of this repository. * Updating the license from MPL to Business Source License Going forward, this project will be licensed under the Business Source License v1.1. Please see our blog post for more details at <Blog URL>, FAQ at www.hashicorp.com/licensing-faq, and details of the license at www.hashicorp.com/bsl. * add missing license headers * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 --------- Co-authored-by: hashicorp-copywrite[bot] <110428419+hashicorp-copywrite[bot]@users.noreply.github.com>
2023-08-11 13:12:13 +00:00
// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: BUSL-1.1
package tfgen
import (
"fmt"
"strings"
"github.com/hashicorp/hcl/v2/hclwrite"
"github.com/hashicorp/consul/testing/deployer/sprawl/internal/secrets"
"github.com/hashicorp/consul/testing/deployer/topology"
)
func (g *Generator) generateAgentHCL(node *topology.Node, enableV2, enableV2Tenancy bool) string {
if !node.IsAgent() {
panic("generateAgentHCL only applies to agents")
}
cluster, ok := g.topology.Clusters[node.Cluster]
if !ok {
panic(fmt.Sprintf("no such cluster: %s", node.Cluster))
}
var b HCLBuilder
b.add("server", node.IsServer())
b.add("bind_addr", "0.0.0.0")
b.add("client_addr", "0.0.0.0")
b.add("advertise_addr", `{{ GetInterfaceIP "eth0" }}`)
b.add("datacenter", node.Datacenter)
b.add("disable_update_check", true)
b.add("log_level", "trace")
b.add("enable_debug", true)
b.add("use_streaming_backend", true)
var experiments []string
if enableV2 {
experiments = append(experiments, "resource-apis")
}
if enableV2Tenancy {
experiments = append(experiments, "v2tenancy")
}
if len(experiments) > 0 {
b.addSlice("experiments", experiments)
}
// speed up leaves
b.addBlock("performance", func() {
b.add("leave_drain_time", "50ms")
})
b.add("primary_datacenter", node.Datacenter)
// Using retry_join here is bad because changing server membership will
// destroy and recreate all of the servers
// if !node.IsServer() {
b.addSlice("retry_join", []string{"server." + node.Cluster + "-consulcluster.lan"})
b.add("retry_interval", "1s")
// }
if node.Images.GreaterThanVersion(topology.MinVersionPeering) {
if node.IsServer() {
b.addBlock("peering", func() {
b.add("enabled", true)
})
}
}
b.addBlock("ui_config", func() {
b.add("enabled", true)
})
b.addBlock("telemetry", func() {
b.add("disable_hostname", true)
b.add("prometheus_retention_time", "168h")
})
b.add("encrypt", g.sec.ReadGeneric(node.Cluster, secrets.GossipKey))
{
var (
root = "/consul/config/certs"
caFile = root + "/consul-agent-ca.pem"
certFile = root + "/" + node.TLSCertPrefix + ".pem"
certKey = root + "/" + node.TLSCertPrefix + "-key.pem"
)
if node.Images.GreaterThanVersion(topology.MinVersionTLS) {
b.addBlock("tls", func() {
b.addBlock("internal_rpc", func() {
b.add("ca_file", caFile)
b.add("cert_file", certFile)
b.add("key_file", certKey)
b.add("verify_incoming", true)
b.add("verify_server_hostname", true)
b.add("verify_outgoing", true)
})
// if cfg.EncryptionTLSAPI {
// b.addBlock("https", func() {
// b.add("ca_file", caFile)
// b.add("cert_file", certFile)
// b.add("key_file", certKey)
// // b.add("verify_incoming", true)
// })
// }
if node.IsServer() {
b.addBlock("grpc", func() {
b.add("ca_file", caFile)
b.add("cert_file", certFile)
b.add("key_file", certKey)
// b.add("verify_incoming", true)
})
}
})
}
}
b.addBlock("ports", func() {
if node.Images.GreaterThanVersion(topology.MinVersionPeering) {
if node.IsServer() {
b.add("grpc_tls", 8503)
b.add("grpc", -1)
} else {
b.add("grpc", 8502)
b.add("grpc_tls", -1)
}
}
b.add("http", 8500)
b.add("dns", 8600)
})
b.addSlice("recursors", []string{"8.8.8.8"})
b.addBlock("acl", func() {
b.add("enabled", true)
b.add("default_policy", "deny")
b.add("down_policy", "extend-cache")
b.add("enable_token_persistence", true)
if node.Images.GreaterThanVersion(topology.MinVersionAgentTokenPartition) {
b.addBlock("tokens", func() {
if node.IsServer() {
b.add("initial_management", g.sec.ReadGeneric(node.Cluster, secrets.BootstrapToken))
}
b.add("agent_recovery", g.sec.ReadGeneric(node.Cluster, secrets.AgentRecovery))
b.add("agent", g.sec.ReadAgentToken(node.Cluster, node.ID()))
})
} else {
b.addBlock("tokens", func() {
if node.IsServer() {
b.add("master", g.sec.ReadGeneric(node.Cluster, secrets.BootstrapToken))
}
})
}
})
if node.IsServer() {
// bootstrap_expect is omitted if this node is a new server
if !node.IsNewServer {
b.add("bootstrap_expect", len(cluster.ServerNodes()))
}
// b.add("translate_wan_addrs", true)
b.addBlock("rpc", func() {
b.add("enable_streaming", true)
})
if node.HasPublicAddress() {
b.add("advertise_addr_wan", `{{ GetInterfaceIP "eth1" }}`) // note: can't use 'node.PublicAddress()' b/c we don't know that yet
}
// Exercise config entry bootstrap
// b.addBlock("config_entries", func() {
// b.addBlock("bootstrap", func() {
// b.add("kind", "service-defaults")
// b.add("name", "placeholder")
// b.add("protocol", "grpc")
// })
// b.addBlock("bootstrap", func() {
// b.add("kind", "service-intentions")
// b.add("name", "placeholder")
// b.addBlock("sources", func() {
// b.add("name", "placeholder-client")
// b.add("action", "allow")
// })
// })
// })
b.addBlock("connect", func() {
b.add("enabled", true)
})
// b.addBlock("autopilot", func() {
// b.add("upgrade_version_tag", "build")
// })
if node.AutopilotConfig != nil {
b.addBlock("autopilot", func() {
for k, v := range node.AutopilotConfig {
b.add(k, v)
}
})
}
if node.Meta != nil {
b.addBlock("node_meta", func() {
for k, v := range node.Meta {
b.add(k, v)
}
})
}
} else {
if cluster.Enterprise && node.Images.GreaterThanVersion(topology.MinVersionAgentTokenPartition) {
b.add("partition", node.Partition)
}
}
return b.String()
}
type HCLBuilder struct {
parts []string
}
func (b *HCLBuilder) format(s string, a ...any) {
if len(a) == 0 {
b.parts = append(b.parts, s)
} else {
b.parts = append(b.parts, fmt.Sprintf(s, a...))
}
}
func (b *HCLBuilder) add(k string, v any) {
switch x := v.(type) {
case string:
if x != "" {
b.format("%s = %q", k, x)
}
case int:
b.format("%s = %d", k, x)
case bool:
b.format("%s = %v", k, x)
default:
panic(fmt.Sprintf("unexpected type %T", v))
}
}
func (b *HCLBuilder) addBlock(block string, fn func()) {
b.format(block + "{")
fn()
b.format("}")
}
func (b *HCLBuilder) addSlice(name string, vals []string) {
b.format(name + " = [")
for _, v := range vals {
b.format("%q,", v)
}
b.format("]")
}
func (b *HCLBuilder) String() string {
joined := strings.Join(b.parts, "\n")
// Ensure it looks tidy
return string(hclwrite.Format([]byte(joined)))
}