2023-01-11 21:34:27 +00:00
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package cluster
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import (
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"encoding/json"
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"path/filepath"
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"testing"
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"github.com/stretchr/testify/require"
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"golang.org/x/mod/semver"
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"github.com/hashicorp/consul/test/integration/consul-container/libs/utils"
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)
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// TODO: switch from semver to go-version
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const (
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remoteCertDirectory = "/consul/config/certs"
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ConsulCACertPEM = "consul-agent-ca.pem"
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ConsulCACertKey = "consul-agent-ca-key.pem"
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)
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2023-03-18 20:43:22 +00:00
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type LogStore string
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const (
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LogStore_WAL LogStore = "wal"
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LogStore_BoltDB LogStore = "boltdb"
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)
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2023-01-11 21:34:27 +00:00
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// BuildContext provides a reusable object meant to share common configuration settings
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// between agent configuration builders.
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type BuildContext struct {
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datacenter string
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consulImageName string
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consulVersion string
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injectGossipEncryption bool // setup the agents to use a gossip encryption key
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encryptKey string
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injectCerts bool // initializes the built-in CA and distributes client certificates to agents
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injectAutoEncryption bool // initialize the built-in CA and set up agents to use auto-encrpt
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allowHTTPAnyway bool
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useAPIWithTLS bool
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useGRPCWithTLS bool
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certVolume string
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caCert string
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tlsCertIndex int // keeps track of the certificates issued for naming purposes
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2023-02-07 19:13:19 +00:00
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aclEnabled bool
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2023-03-18 20:43:22 +00:00
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logStore LogStore
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2023-01-11 21:34:27 +00:00
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}
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func (c *BuildContext) DockerImage() string {
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return utils.DockerImage(c.consulImageName, c.consulVersion)
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}
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// BuildOptions define the desired automated test setup overrides that are
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// applied across agents in the cluster
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type BuildOptions struct {
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// Datacenter is the override datacenter for agents.
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Datacenter string
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// ConsulImageName is the default Consul image name for agents in the
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// cluster when none is specified.
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ConsulImageName string
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// ConsulVersion is the default Consul version for agents in the cluster
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// when none is specified.
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ConsulVersion string
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// InjectGossipEncryption provides a gossip encryption key for all agents.
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InjectGossipEncryption bool
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// InjectCerts provides a CA for all agents and (future) agent certs.
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//
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// It also disables the HTTP API unless AllowHTTPAnyway is enabled.
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InjectCerts bool
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// InjectAutoEncryption configures auto-encrypt for TLS and sets up certs.
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// Overrides InjectCerts.
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//
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// It also disables the HTTP API unless AllowHTTPAnyway is enabled.
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InjectAutoEncryption bool
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// AllowHTTPAnyway ensures that the HTTP API is enabled even when
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// InjectCerts or InjectAutoEncryption are enabled.
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AllowHTTPAnyway bool
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// UseAPIWithTLS ensures that any accesses for the JSON API use the https
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// port. By default it will not.
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UseAPIWithTLS bool
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// UseGRPCWithTLS ensures that any accesses for external gRPC use the
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// grpc_tls port. By default it will not.
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UseGRPCWithTLS bool
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2023-02-07 19:13:19 +00:00
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// ACLEnabled configures acl in agent configuration
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ACLEnabled bool
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2023-03-18 20:43:22 +00:00
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//StoreLog define which LogStore to use
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LogStore LogStore
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2023-01-11 21:34:27 +00:00
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}
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func NewBuildContext(t *testing.T, opts BuildOptions) *BuildContext {
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ctx := &BuildContext{
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datacenter: opts.Datacenter,
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consulImageName: opts.ConsulImageName,
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consulVersion: opts.ConsulVersion,
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injectGossipEncryption: opts.InjectGossipEncryption,
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injectCerts: opts.InjectCerts,
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injectAutoEncryption: opts.InjectAutoEncryption,
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allowHTTPAnyway: opts.AllowHTTPAnyway,
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useAPIWithTLS: opts.UseAPIWithTLS,
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useGRPCWithTLS: opts.UseGRPCWithTLS,
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2023-02-07 19:13:19 +00:00
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aclEnabled: opts.ACLEnabled,
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2023-03-18 20:43:22 +00:00
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logStore: opts.LogStore,
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2023-01-11 21:34:27 +00:00
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}
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if ctx.consulImageName == "" {
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ctx.consulImageName = utils.TargetImageName
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}
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if ctx.consulVersion == "" {
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ctx.consulVersion = utils.TargetVersion
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}
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if opts.InjectGossipEncryption {
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serfKey, err := newSerfEncryptionKey()
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require.NoError(t, err, "could not generate serf encryption key")
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ctx.encryptKey = serfKey
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}
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if opts.InjectAutoEncryption {
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if opts.UseAPIWithTLS {
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// TODO: we should improve this
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t.Fatalf("Cannot use TLS with the API in conjunction with Auto Encrypt because you would need to use the Connect CA Cert for verification")
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}
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if opts.UseGRPCWithTLS {
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// TODO: we should improve this
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t.Fatalf("Cannot use TLS with gRPC in conjunction with Auto Encrypt because you would need to use the Connect CA Cert for verification")
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}
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}
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if opts.InjectAutoEncryption || opts.InjectCerts {
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ctx.createTLSCAFiles(t)
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} else {
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if opts.UseAPIWithTLS {
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t.Fatalf("UseAPIWithTLS requires one of InjectAutoEncryption or InjectCerts to be set")
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}
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if opts.UseGRPCWithTLS {
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t.Fatalf("UseGRPCWithTLS requires one of InjectAutoEncryption or InjectCerts to be set")
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}
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}
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return ctx
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}
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type Builder struct {
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context *BuildContext // this is non-nil
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conf *ConfigBuilder
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}
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// NewConfigBuilder instantiates a builder object with sensible defaults for a single consul instance
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// This includes the following:
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// * default ports with no plaintext options
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// * debug logging
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// * single server with bootstrap
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// * bind to all interfaces, advertise on 'eth0'
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// * connect enabled
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func NewConfigBuilder(ctx *BuildContext) *Builder {
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if ctx == nil {
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panic("BuildContext is a required argument")
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}
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b := &Builder{
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conf: &ConfigBuilder{},
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context: ctx,
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}
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b.conf.Set("advertise_addr", `{{ GetInterfaceIP "eth0" }}`)
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b.conf.Set("bind_addr", "0.0.0.0")
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b.conf.Set("data_dir", "/consul/data")
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b.conf.Set("bootstrap", true)
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b.conf.Set("client_addr", "0.0.0.0")
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b.conf.Set("connect.enabled", true)
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b.conf.Set("log_level", "debug")
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b.conf.Set("server", true)
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// These are the default ports, disabling plaintext transport
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b.conf.Set("ports.dns", 8600)
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//nolint:staticcheck
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if ctx.certVolume == "" {
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b.conf.Set("ports.http", 8500)
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b.conf.Set("ports.https", -1)
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} else {
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b.conf.Set("ports.http", -1)
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b.conf.Set("ports.https", 8501)
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}
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b.conf.Set("ports.grpc", 8502)
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b.conf.Set("ports.serf_lan", 8301)
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b.conf.Set("ports.serf_wan", 8302)
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b.conf.Set("ports.server", 8300)
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if ctx.allowHTTPAnyway {
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b.conf.Set("ports.http", 8500)
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}
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if ctx.consulVersion == "local" || semver.Compare("v"+ctx.consulVersion, "v1.14.0") >= 0 {
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// Enable GRPCTLS for version after v1.14.0
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b.conf.Set("ports.grpc_tls", 8503)
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}
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2023-02-07 19:13:19 +00:00
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if ctx.aclEnabled {
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b.conf.Set("acl.enabled", true)
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b.conf.Set("acl.default_policy", "deny")
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b.conf.Set("acl.enable_token_persistence", true)
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}
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2023-03-18 20:43:22 +00:00
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ls := string(ctx.logStore)
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if ls != "" && (ctx.consulVersion == "local" ||
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semver.Compare("v"+ctx.consulVersion, "v1.15.0") >= 0) {
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// Enable logstore backend for version after v1.15.0
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if ls != string(LogStore_WAL) && ls != string(LogStore_BoltDB) {
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ls = string(LogStore_BoltDB)
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}
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b.conf.Set("raft_logstore.backend", ls)
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} else {
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b.conf.Unset("raft_logstore.backend")
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}
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2023-01-11 21:34:27 +00:00
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return b
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}
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// Advanced lets you directly manipulate specific config settings.
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func (b *Builder) Advanced(fn func(*ConfigBuilder)) *Builder {
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if fn != nil {
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fn(b.conf)
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}
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return b
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}
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func (b *Builder) Bootstrap(servers int) *Builder {
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if servers < 1 {
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b.conf.Unset("bootstrap")
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b.conf.Unset("bootstrap_expect")
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} else if servers == 1 {
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b.conf.Set("bootstrap", true)
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b.conf.Unset("bootstrap_expect")
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} else {
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b.conf.Unset("bootstrap")
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b.conf.Set("bootstrap_expect", servers)
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}
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return b
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}
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func (b *Builder) Client() *Builder {
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b.conf.Unset("ports.server")
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b.conf.Unset("server")
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b.conf.Unset("bootstrap")
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b.conf.Unset("bootstrap_expect")
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return b
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}
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func (b *Builder) Datacenter(name string) *Builder {
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b.conf.Set("datacenter", name)
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return b
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}
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func (b *Builder) Peering(enable bool) *Builder {
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b.conf.Set("peering.enabled", enable)
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return b
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}
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2023-03-06 18:28:02 +00:00
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func (b *Builder) Partition(name string) *Builder {
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b.conf.Set("partition", name)
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return b
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}
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2023-01-11 21:34:27 +00:00
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func (b *Builder) RetryJoin(names ...string) *Builder {
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b.conf.Set("retry_join", names)
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return b
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}
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2023-02-07 19:13:19 +00:00
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func (b *Builder) EnableACL() *Builder {
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b.conf.Set("acl.enabled", true)
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b.conf.Set("acl.default_policy", "deny")
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b.conf.Set("acl.enable_token_persistence", true)
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return b
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}
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func (b *Builder) Telemetry(statSite string) *Builder {
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b.conf.Set("telemetry.statsite_address", statSite)
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return b
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}
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// ToAgentConfig renders the builders configuration into a string
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// representation of the json config file for agents.
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func (b *Builder) ToAgentConfig(t *testing.T) *Config {
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b.injectContextOptions(t)
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out, err := json.MarshalIndent(b.conf, "", " ")
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require.NoError(t, err, "could not generate json config")
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confCopy, err := b.conf.Clone()
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require.NoError(t, err)
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return &Config{
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JSON: string(out),
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ConfigBuilder: confCopy,
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Cmd: []string{"agent"},
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Image: b.context.consulImageName,
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Version: b.context.consulVersion,
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CertVolume: b.context.certVolume,
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CACert: b.context.caCert,
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UseAPIWithTLS: b.context.useAPIWithTLS,
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UseGRPCWithTLS: b.context.useGRPCWithTLS,
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2023-02-07 19:13:19 +00:00
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ACLEnabled: b.context.aclEnabled,
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}
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}
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func (b *Builder) injectContextOptions(t *testing.T) {
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var dc string
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if b.context.datacenter != "" {
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b.conf.Set("datacenter", b.context.datacenter)
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dc = b.context.datacenter
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}
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if val, _ := b.conf.GetString("datacenter"); val == "" {
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dc = "dc1"
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}
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b.conf.Set("datacenter", dc)
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server, _ := b.conf.GetBool("server")
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if b.context.encryptKey != "" {
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b.conf.Set("encrypt", b.context.encryptKey)
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}
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// For any TLS setup, we add the CA to agent conf
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if b.context.certVolume != "" {
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b.conf.Set("tls.defaults.ca_file", filepath.Join(remoteCertDirectory, ConsulCACertPEM))
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b.conf.Set("tls.defaults.verify_outgoing", true) // Secure settings
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b.conf.Set("tls.internal_rpc.verify_server_hostname", true)
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}
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// Also for any TLS setup, generate server key pairs from the CA
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if b.context.certVolume != "" && server {
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keyFileName, certFileName := b.context.createTLSCertFiles(t, dc)
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b.context.tlsCertIndex++
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b.conf.Set("tls.defaults.cert_file", filepath.Join(remoteCertDirectory, certFileName))
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b.conf.Set("tls.defaults.key_file", filepath.Join(remoteCertDirectory, keyFileName))
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b.conf.Set("tls.internal_rpc.verify_incoming", true) // Only applies to servers for auto-encrypt
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}
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// This assumes we've already gone through the CA/Cert setup in the previous conditional
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if b.context.injectAutoEncryption {
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if server {
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b.conf.Set("auto_encrypt.allow_tls", true) // This setting is different between client and servers
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b.conf.Set("tls.grpc.use_auto_cert", true) // This is required for peering to work over the non-GRPC_TLS port
|
|
|
|
// VerifyIncoming does not apply to client agents for auto-encrypt
|
|
|
|
} else {
|
|
|
|
b.conf.Set("auto_encrypt.tls", true) // This setting is different between client and servers
|
|
|
|
b.conf.Set("tls.grpc.use_auto_cert", true) // This is required for peering to work over the non-GRPC_TLS port
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if b.context.injectCerts && !b.context.injectAutoEncryption {
|
|
|
|
panic("client certificate distribution not implemented")
|
|
|
|
}
|
|
|
|
}
|