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agent/consul: make router required

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This commit is contained in:
Daniel Nephin 2020-09-11 12:43:29 -04:00
parent 49086dd5ae
commit 0536b2047e
5 changed files with 37 additions and 22 deletions
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18
agent/consul/client.go
View file

@ -68,8 +68,7 @@ type Client struct {
// from an agent.
rpcLimiter atomic.Value
// eventCh is used to receive events from the
// serf cluster in the datacenter
// eventCh is used to receive events from the serf cluster in the datacenter
eventCh chan serf.Event
// Logger uses the provided LogOutput
@ -108,6 +107,9 @@ func NewClient(config *Config, options ...ConsulOption) (*Client, error) {
if flat.logger == nil {
return nil, fmt.Errorf("logger is required")
}
if flat.router == nil {
return nil, fmt.Errorf("router is required")
}
if connPool == nil {
connPool = &pool.ConnPool{
@ -156,23 +158,17 @@ func NewClient(config *Config, options ...ConsulOption) (*Client, error) {
}
// Initialize the LAN Serf
c.serf, err = c.setupSerf(config.SerfLANConfig,
c.eventCh, serfLANSnapshot)
c.serf, err = c.setupSerf(config.SerfLANConfig, c.eventCh, serfLANSnapshot)
if err != nil {
c.Shutdown()
return nil, fmt.Errorf("Failed to start lan serf: %v", err)
}
rpcRouter := flat.router
if rpcRouter == nil {
rpcRouter = router.NewRouter(logger, config.Datacenter, fmt.Sprintf("%s.%s", config.NodeName, config.Datacenter))
}
if err := rpcRouter.AddArea(types.AreaLAN, c.serf, c.connPool); err != nil {
if err := flat.router.AddArea(types.AreaLAN, c.serf, c.connPool); err != nil {
c.Shutdown()
return nil, fmt.Errorf("Failed to add LAN area to the RPC router: %w", err)
}
c.router = rpcRouter
c.router = flat.router
// Start LAN event handlers after the router is complete since the event
// handlers depend on the router and the router depends on Serf.

14
agent/consul/client_test.go
View file

@ -2,12 +2,14 @@ package consul
import (
"bytes"
"fmt"
"net"
"os"
"sync"
"testing"
"time"
"github.com/hashicorp/consul/agent/router"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/sdk/freeport"
"github.com/hashicorp/consul/sdk/testutil"
@ -75,7 +77,11 @@ func testClientWithConfigWithErr(t *testing.T, cb func(c *Config)) (string, *Cli
t.Fatalf("err: %v", err)
}
client, err := NewClient(config, WithLogger(logger), WithTLSConfigurator(tlsConf))
r := router.NewRouter(logger, config.Datacenter, fmt.Sprintf("%s.%s", config.NodeName, config.Datacenter))
client, err := NewClient(config,
WithLogger(logger),
WithTLSConfigurator(tlsConf),
WithRouter(r))
return dir, client, err
}
@ -473,7 +479,11 @@ func newClient(t *testing.T, config *Config) *Client {
Level: hclog.Debug,
Output: testutil.NewLogBuffer(t),
})
client, err := NewClient(config, WithLogger(logger), WithTLSConfigurator(c))
r := router.NewRouter(logger, config.Datacenter, fmt.Sprintf("%s.%s", config.NodeName, config.Datacenter))
client, err := NewClient(config,
WithLogger(logger),
WithTLSConfigurator(c),
WithRouter(r))
require.NoError(t, err, "failed to create client")
t.Cleanup(func() {
client.Shutdown()

6
agent/consul/leader_test.go
View file

@ -9,6 +9,7 @@ import (
"testing"
"time"
"github.com/hashicorp/consul/agent/router"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/agent/token"
"github.com/hashicorp/consul/api"
@ -1305,10 +1306,13 @@ func TestLeader_ConfigEntryBootstrap_Fail(t *testing.T) {
})
tlsConf, err := tlsutil.NewConfigurator(config.ToTLSUtilConfig(), logger)
require.NoError(t, err)
rpcRouter := router.NewRouter(logger, config.Datacenter, fmt.Sprintf("%s.%s", config.NodeName, config.Datacenter))
srv, err := NewServer(config,
WithLogger(logger),
WithTokenStore(new(token.Store)),
WithTLSConfigurator(tlsConf))
WithTLSConfigurator(tlsConf),
WithRouter(rpcRouter))
require.NoError(t, err)
defer srv.Shutdown()

10
agent/consul/server.go
View file

@ -331,7 +331,6 @@ func NewServer(config *Config, options ...ConsulOption) (*Server, error) {
tokens := flat.tokens
tlsConfigurator := flat.tlsConfigurator
connPool := flat.connPool
rpcRouter := flat.router
if err := config.CheckProtocolVersion(); err != nil {
return nil, err
@ -345,6 +344,9 @@ func NewServer(config *Config, options ...ConsulOption) (*Server, error) {
if logger == nil {
return nil, fmt.Errorf("logger is required")
}
if flat.router == nil {
return nil, fmt.Errorf("router is required")
}
// Check if TLS is enabled
if config.CAFile != "" || config.CAPath != "" {
@ -388,10 +390,6 @@ func NewServer(config *Config, options ...ConsulOption) (*Server, error) {
serverLogger := logger.NamedIntercept(logging.ConsulServer)
loggers := newLoggerStore(serverLogger)
if rpcRouter == nil {
rpcRouter = router.NewRouter(serverLogger, config.Datacenter, fmt.Sprintf("%s.%s", config.NodeName, config.Datacenter))
}
// Create server.
s := &Server{
config: config,
@ -403,7 +401,7 @@ func NewServer(config *Config, options ...ConsulOption) (*Server, error) {
loggers: loggers,
leaveCh: make(chan struct{}),
reconcileCh: make(chan serf.Member, reconcileChSize),
router: rpcRouter,
router: flat.router,
rpcServer: rpc.NewServer(),
insecureRPCServer: rpc.NewServer(),
tlsConfigurator: tlsConfigurator,

11
agent/consul/server_test.go
View file

@ -17,6 +17,7 @@ import (
"github.com/google/tcpproxy"
"github.com/hashicorp/consul/agent/connect/ca"
"github.com/hashicorp/consul/agent/router"
"github.com/hashicorp/consul/ipaddr"
"github.com/hashicorp/memberlist"
@ -301,10 +302,13 @@ func newServer(t *testing.T, c *Config) (*Server, error) {
if err != nil {
return nil, err
}
rpcRouter := router.NewRouter(logger, c.Datacenter, fmt.Sprintf("%s.%s", c.NodeName, c.Datacenter))
srv, err := NewServer(c,
WithLogger(logger),
WithTokenStore(new(token.Store)),
WithTLSConfigurator(tlsConf))
WithTLSConfigurator(tlsConf),
WithRouter(rpcRouter))
if err != nil {
return nil, err
}
@ -1491,10 +1495,13 @@ func TestServer_CALogging(t *testing.T) {
c, err := tlsutil.NewConfigurator(conf1.ToTLSUtilConfig(), logger)
require.NoError(t, err)
rpcRouter := router.NewRouter(logger, "dc1", fmt.Sprintf("%s.%s", "nodename", "dc1"))
s1, err := NewServer(conf1,
WithLogger(logger),
WithTokenStore(new(token.Store)),
WithTLSConfigurator(c))
WithTLSConfigurator(c),
WithRouter(rpcRouter))
if err != nil {
t.Fatalf("err: %v", err)
}