open-nomad/nomad/client_rpc_test.go
2018-10-29 14:21:05 -07:00

289 lines
6.7 KiB
Go

package nomad
import (
"net"
"testing"
"github.com/hashicorp/nomad/client"
"github.com/hashicorp/nomad/client/config"
"github.com/hashicorp/nomad/helper/uuid"
"github.com/hashicorp/nomad/nomad/structs"
"github.com/hashicorp/nomad/testutil"
"github.com/stretchr/testify/require"
)
type namedConnWrapper struct {
net.Conn
name string
}
type namedAddr string
func (n namedAddr) String() string { return string(n) }
func (n namedAddr) Network() string { return string(n) }
func (n namedConnWrapper) LocalAddr() net.Addr {
return namedAddr(n.name)
}
func TestServer_removeNodeConn_differentAddrs(t *testing.T) {
t.Parallel()
require := require.New(t)
s1 := TestServer(t, nil)
defer s1.Shutdown()
testutil.WaitForLeader(t, s1.RPC)
p1, p2 := net.Pipe()
w1 := namedConnWrapper{
Conn: p1,
name: "a",
}
w2 := namedConnWrapper{
Conn: p2,
name: "b",
}
// Add the connections
nodeID := uuid.Generate()
ctx1 := &RPCContext{
Conn: w1,
NodeID: nodeID,
}
ctx2 := &RPCContext{
Conn: w2,
NodeID: nodeID,
}
s1.addNodeConn(ctx1)
s1.addNodeConn(ctx2)
require.Len(s1.connectedNodes(), 1)
require.Len(s1.nodeConns[nodeID], 2)
// Check that the value is the second conn.
state, ok := s1.getNodeConn(nodeID)
require.True(ok)
require.Equal(state.Ctx.Conn.LocalAddr().String(), w2.name)
// Delete the first
s1.removeNodeConn(ctx1)
require.Len(s1.connectedNodes(), 1)
require.Len(s1.nodeConns[nodeID], 1)
// Check that the value is the second conn.
state, ok = s1.getNodeConn(nodeID)
require.True(ok)
require.Equal(state.Ctx.Conn.LocalAddr().String(), w2.name)
// Delete the second
s1.removeNodeConn(ctx2)
require.Len(s1.connectedNodes(), 0)
_, ok = s1.getNodeConn(nodeID)
require.False(ok)
}
func TestServerWithNodeConn_NoPath(t *testing.T) {
t.Parallel()
require := require.New(t)
s1 := TestServer(t, nil)
defer s1.Shutdown()
s2 := TestServer(t, func(c *Config) {
c.DevDisableBootstrap = true
})
defer s2.Shutdown()
TestJoin(t, s1, s2)
testutil.WaitForLeader(t, s1.RPC)
testutil.WaitForLeader(t, s2.RPC)
nodeID := uuid.Generate()
srv, err := s1.serverWithNodeConn(nodeID, s1.Region())
require.Nil(srv)
require.EqualError(err, structs.ErrNoNodeConn.Error())
}
func TestServerWithNodeConn_NoPath_Region(t *testing.T) {
t.Parallel()
require := require.New(t)
s1 := TestServer(t, nil)
defer s1.Shutdown()
testutil.WaitForLeader(t, s1.RPC)
nodeID := uuid.Generate()
srv, err := s1.serverWithNodeConn(nodeID, "fake-region")
require.Nil(srv)
require.EqualError(err, structs.ErrNoRegionPath.Error())
}
func TestServerWithNodeConn_Path(t *testing.T) {
t.Parallel()
require := require.New(t)
s1 := TestServer(t, nil)
defer s1.Shutdown()
s2 := TestServer(t, func(c *Config) {
c.DevDisableBootstrap = true
})
defer s2.Shutdown()
TestJoin(t, s1, s2)
testutil.WaitForLeader(t, s1.RPC)
testutil.WaitForLeader(t, s2.RPC)
// Create a fake connection for the node on server 2
nodeID := uuid.Generate()
s2.addNodeConn(&RPCContext{
NodeID: nodeID,
})
srv, err := s1.serverWithNodeConn(nodeID, s1.Region())
require.NotNil(srv)
require.Equal(srv.Addr.String(), s2.config.RPCAddr.String())
require.Nil(err)
}
func TestServerWithNodeConn_Path_Region(t *testing.T) {
t.Parallel()
require := require.New(t)
s1 := TestServer(t, nil)
defer s1.Shutdown()
s2 := TestServer(t, func(c *Config) {
c.Region = "two"
})
defer s2.Shutdown()
TestJoin(t, s1, s2)
testutil.WaitForLeader(t, s1.RPC)
testutil.WaitForLeader(t, s2.RPC)
// Create a fake connection for the node on server 2
nodeID := uuid.Generate()
s2.addNodeConn(&RPCContext{
NodeID: nodeID,
})
srv, err := s1.serverWithNodeConn(nodeID, s2.Region())
require.NotNil(srv)
require.Equal(srv.Addr.String(), s2.config.RPCAddr.String())
require.Nil(err)
}
func TestServerWithNodeConn_Path_Newest(t *testing.T) {
t.Parallel()
require := require.New(t)
s1 := TestServer(t, nil)
defer s1.Shutdown()
s2 := TestServer(t, func(c *Config) {
c.DevDisableBootstrap = true
})
defer s2.Shutdown()
s3 := TestServer(t, func(c *Config) {
c.DevDisableBootstrap = true
})
defer s3.Shutdown()
TestJoin(t, s1, s2, s3)
testutil.WaitForLeader(t, s1.RPC)
testutil.WaitForLeader(t, s2.RPC)
testutil.WaitForLeader(t, s3.RPC)
// Create a fake connection for the node on server 2 and 3
nodeID := uuid.Generate()
s2.addNodeConn(&RPCContext{
NodeID: nodeID,
})
s3.addNodeConn(&RPCContext{
NodeID: nodeID,
})
srv, err := s1.serverWithNodeConn(nodeID, s1.Region())
require.NotNil(srv)
require.Equal(srv.Addr.String(), s3.config.RPCAddr.String())
require.Nil(err)
}
func TestServerWithNodeConn_PathAndErr(t *testing.T) {
t.Parallel()
require := require.New(t)
s1 := TestServer(t, nil)
defer s1.Shutdown()
s2 := TestServer(t, func(c *Config) {
c.DevDisableBootstrap = true
})
defer s2.Shutdown()
s3 := TestServer(t, func(c *Config) {
c.DevDisableBootstrap = true
})
defer s3.Shutdown()
TestJoin(t, s1, s2, s3)
testutil.WaitForLeader(t, s1.RPC)
testutil.WaitForLeader(t, s2.RPC)
testutil.WaitForLeader(t, s3.RPC)
// Create a fake connection for the node on server 2
nodeID := uuid.Generate()
s2.addNodeConn(&RPCContext{
NodeID: nodeID,
})
// Shutdown the RPC layer for server 3
s3.rpcListener.Close()
srv, err := s1.serverWithNodeConn(nodeID, s1.Region())
require.NotNil(srv)
require.Equal(srv.Addr.String(), s2.config.RPCAddr.String())
require.Nil(err)
}
func TestServerWithNodeConn_NoPathAndErr(t *testing.T) {
t.Parallel()
require := require.New(t)
s1 := TestServer(t, nil)
defer s1.Shutdown()
s2 := TestServer(t, func(c *Config) {
c.DevDisableBootstrap = true
})
defer s2.Shutdown()
s3 := TestServer(t, func(c *Config) {
c.DevDisableBootstrap = true
})
defer s3.Shutdown()
TestJoin(t, s1, s2, s3)
testutil.WaitForLeader(t, s1.RPC)
testutil.WaitForLeader(t, s2.RPC)
testutil.WaitForLeader(t, s3.RPC)
// Shutdown the RPC layer for server 3
s3.rpcListener.Close()
srv, err := s1.serverWithNodeConn(uuid.Generate(), s1.Region())
require.Nil(srv)
require.NotNil(err)
require.Contains(err.Error(), "failed querying")
}
func TestNodeStreamingRpc_badEndpoint(t *testing.T) {
t.Parallel()
require := require.New(t)
s1 := TestServer(t, nil)
defer s1.Shutdown()
testutil.WaitForLeader(t, s1.RPC)
c, cleanup := client.TestClient(t, func(c *config.Config) {
c.Servers = []string{s1.config.RPCAddr.String()}
})
defer cleanup()
// Wait for the client to connect
testutil.WaitForResult(func() (bool, error) {
nodes := s1.connectedNodes()
return len(nodes) == 1, nil
}, func(err error) {
t.Fatalf("should have a clients")
})
state, ok := s1.getNodeConn(c.NodeID())
require.True(ok)
conn, err := NodeStreamingRpc(state.Session, "Bogus")
require.Nil(conn)
require.NotNil(err)
require.Contains(err.Error(), "Bogus")
require.True(structs.IsErrUnknownMethod(err))
}