core: open source namespaces

CHANGELOG.md

@@ -3,6 +3,7 @@
 FEATURES:
 
 * **Event Stream**: Subscribe to change events as they occur in real time. [[GH-9013](https://github.com/hashicorp/nomad/issues/9013)]
+* **Namespaces OSS**: Namespaces are now available in open source Nomad. [[GH-9135](https://github.com/hashicorp/nomad/issues/9135)]
 * **Topology Visualization**: See all of the clients and allocations in a cluster at once. [[GH-9077](https://github.com/hashicorp/nomad/issues/9077)]
 
 IMPROVEMENTS:

command/agent/http.go

@@ -328,6 +328,10 @@ func (s *HTTPServer) registerHandlers(enableDebug bool) {
 
 	s.mux.HandleFunc("/v1/event/stream", s.wrap(s.EventStream))
 
+	s.mux.HandleFunc("/v1/namespaces", s.wrap(s.NamespacesRequest))
+	s.mux.HandleFunc("/v1/namespace", s.wrap(s.NamespaceCreateRequest))
+	s.mux.HandleFunc("/v1/namespace/", s.wrap(s.NamespaceSpecificRequest))
+
 	if uiEnabled {
 		s.mux.Handle("/ui/", http.StripPrefix("/ui/", s.handleUI(http.FileServer(&UIAssetWrapper{FileSystem: assetFS()}))))
 	} else {

command/agent/http_oss.go

@@ -8,10 +8,6 @@ import (
 
 // registerEnterpriseHandlers is a no-op for the oss release
 func (s *HTTPServer) registerEnterpriseHandlers() {
-	s.mux.HandleFunc("/v1/namespaces", s.wrap(s.entOnly))
-	s.mux.HandleFunc("/v1/namespace", s.wrap(s.entOnly))
-	s.mux.HandleFunc("/v1/namespace/", s.wrap(s.entOnly))
-
 	s.mux.HandleFunc("/v1/sentinel/policies", s.wrap(s.entOnly))
 	s.mux.HandleFunc("/v1/sentinel/policy/", s.wrap(s.entOnly))
 

command/agent/namespace_endpoint.go

@@ -0,0 +1,119 @@
+package agent
+
+import (
+	"net/http"
+	"strings"
+
+	"github.com/hashicorp/nomad/nomad/structs"
+)
+
+func (s *HTTPServer) NamespacesRequest(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
+	if req.Method != "GET" {
+		return nil, CodedError(405, ErrInvalidMethod)
+	}
+
+	args := structs.NamespaceListRequest{}
+	if s.parse(resp, req, &args.Region, &args.QueryOptions) {
+		return nil, nil
+	}
+
+	var out structs.NamespaceListResponse
+	if err := s.agent.RPC("Namespace.ListNamespaces", &args, &out); err != nil {
+		return nil, err
+	}
+
+	setMeta(resp, &out.QueryMeta)
+	if out.Namespaces == nil {
+		out.Namespaces = make([]*structs.Namespace, 0)
+	}
+	return out.Namespaces, nil
+}
+
+func (s *HTTPServer) NamespaceSpecificRequest(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
+	name := strings.TrimPrefix(req.URL.Path, "/v1/namespace/")
+	if len(name) == 0 {
+		return nil, CodedError(400, "Missing Namespace Name")
+	}
+	switch req.Method {
+	case "GET":
+		return s.namespaceQuery(resp, req, name)
+	case "PUT", "POST":
+		return s.namespaceUpdate(resp, req, name)
+	case "DELETE":
+		return s.namespaceDelete(resp, req, name)
+	default:
+		return nil, CodedError(405, ErrInvalidMethod)
+	}
+}
+
+func (s *HTTPServer) NamespaceCreateRequest(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
+	if req.Method != "PUT" && req.Method != "POST" {
+		return nil, CodedError(405, ErrInvalidMethod)
+	}
+
+	return s.namespaceUpdate(resp, req, "")
+}
+
+func (s *HTTPServer) namespaceQuery(resp http.ResponseWriter, req *http.Request,
+	namespaceName string) (interface{}, error) {
+	args := structs.NamespaceSpecificRequest{
+		Name: namespaceName,
+	}
+	if s.parse(resp, req, &args.Region, &args.QueryOptions) {
+		return nil, nil
+	}
+
+	var out structs.SingleNamespaceResponse
+	if err := s.agent.RPC("Namespace.GetNamespace", &args, &out); err != nil {
+		return nil, err
+	}
+
+	setMeta(resp, &out.QueryMeta)
+	if out.Namespace == nil {
+		return nil, CodedError(404, "Namespace not found")
+	}
+	return out.Namespace, nil
+}
+
+func (s *HTTPServer) namespaceUpdate(resp http.ResponseWriter, req *http.Request,
+	namespaceName string) (interface{}, error) {
+	// Parse the namespace
+	var namespace structs.Namespace
+	if err := decodeBody(req, &namespace); err != nil {
+		return nil, CodedError(500, err.Error())
+	}
+
+	// Ensure the namespace name matches
+	if namespaceName != "" && namespace.Name != namespaceName {
+		return nil, CodedError(400, "Namespace name does not match request path")
+	}
+
+	// Format the request
+	args := structs.NamespaceUpsertRequest{
+		Namespaces: []*structs.Namespace{&namespace},
+	}
+	s.parseWriteRequest(req, &args.WriteRequest)
+
+	var out structs.GenericResponse
+	if err := s.agent.RPC("Namespace.UpsertNamespaces", &args, &out); err != nil {
+		return nil, err
+	}
+	setIndex(resp, out.Index)
+	return nil, nil
+}
+
+func (s *HTTPServer) namespaceDelete(resp http.ResponseWriter, req *http.Request,
+	namespaceName string) (interface{}, error) {
+
+	args := structs.NamespaceDeleteRequest{
+		Namespaces: []string{namespaceName},
+	}
+	s.parseWriteRequest(req, &args.WriteRequest)
+
+	var out structs.GenericResponse
+	if err := s.agent.RPC("Namespace.DeleteNamespaces", &args, &out); err != nil {
+		return nil, err
+	}
+	setIndex(resp, out.Index)
+	return nil, nil
+}

command/agent/namespace_endpoint_test.go

@@ -0,0 +1,172 @@
+// +build ent
+
+package agent
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/hashicorp/nomad/nomad/mock"
+	"github.com/hashicorp/nomad/nomad/structs"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestHTTP_NamespaceList(t *testing.T) {
+	assert := assert.New(t)
+	t.Parallel()
+	httpTest(t, nil, func(s *TestAgent) {
+		ns1 := mock.Namespace()
+		ns2 := mock.Namespace()
+		ns3 := mock.Namespace()
+		args := structs.NamespaceUpsertRequest{
+			Namespaces:   []*structs.Namespace{ns1, ns2, ns3},
+			WriteRequest: structs.WriteRequest{Region: "global"},
+		}
+		var resp structs.GenericResponse
+		assert.Nil(s.Agent.RPC("Namespace.UpsertNamespaces", &args, &resp))
+
+		// Make the HTTP request
+		req, err := http.NewRequest("GET", "/v1/namespaces", nil)
+		assert.Nil(err)
+		respW := httptest.NewRecorder()
+
+		// Make the request
+		obj, err := s.Server.NamespacesRequest(respW, req)
+		assert.Nil(err)
+
+		// Check for the index
+		assert.NotZero(respW.HeaderMap.Get("X-Nomad-Index"))
+		assert.Equal("true", respW.HeaderMap.Get("X-Nomad-KnownLeader"))
+		assert.NotZero(respW.HeaderMap.Get("X-Nomad-LastContact"))
+
+		// Check the output (the 3 we register + default)
+		assert.Len(obj.([]*structs.Namespace), 4)
+	})
+}
+
+func TestHTTP_NamespaceQuery(t *testing.T) {
+	assert := assert.New(t)
+	t.Parallel()
+	httpTest(t, nil, func(s *TestAgent) {
+		ns1 := mock.Namespace()
+		args := structs.NamespaceUpsertRequest{
+			Namespaces:   []*structs.Namespace{ns1},
+			WriteRequest: structs.WriteRequest{Region: "global"},
+		}
+		var resp structs.GenericResponse
+		assert.Nil(s.Agent.RPC("Namespace.UpsertNamespaces", &args, &resp))
+
+		// Make the HTTP request
+		req, err := http.NewRequest("GET", "/v1/namespace/"+ns1.Name, nil)
+		assert.Nil(err)
+		respW := httptest.NewRecorder()
+
+		// Make the request
+		obj, err := s.Server.NamespaceSpecificRequest(respW, req)
+		assert.Nil(err)
+
+		// Check for the index
+		assert.NotZero(respW.HeaderMap.Get("X-Nomad-Index"))
+		assert.Equal("true", respW.HeaderMap.Get("X-Nomad-KnownLeader"))
+		assert.NotZero(respW.HeaderMap.Get("X-Nomad-LastContact"))
+
+		// Check the output
+		assert.Equal(ns1.Name, obj.(*structs.Namespace).Name)
+	})
+}
+
+func TestHTTP_NamespaceCreate(t *testing.T) {
+	assert := assert.New(t)
+	t.Parallel()
+	httpTest(t, nil, func(s *TestAgent) {
+		// Make the HTTP request
+		ns1 := mock.Namespace()
+		buf := encodeReq(ns1)
+		req, err := http.NewRequest("PUT", "/v1/namespace", buf)
+		assert.Nil(err)
+		respW := httptest.NewRecorder()
+
+		// Make the request
+		obj, err := s.Server.NamespaceCreateRequest(respW, req)
+		assert.Nil(err)
+		assert.Nil(obj)
+
+		// Check for the index
+		assert.NotZero(respW.HeaderMap.Get("X-Nomad-Index"))
+
+		// Check policy was created
+		state := s.Agent.server.State()
+		out, err := state.NamespaceByName(nil, ns1.Name)
+		assert.Nil(err)
+		assert.NotNil(out)
+
+		ns1.CreateIndex, ns1.ModifyIndex = out.CreateIndex, out.ModifyIndex
+		assert.Equal(ns1.Name, out.Name)
+		assert.Equal(ns1, out)
+	})
+}
+
+func TestHTTP_NamespaceUpdate(t *testing.T) {
+	assert := assert.New(t)
+	t.Parallel()
+	httpTest(t, nil, func(s *TestAgent) {
+		// Make the HTTP request
+		ns1 := mock.Namespace()
+		buf := encodeReq(ns1)
+		req, err := http.NewRequest("PUT", "/v1/namespace/"+ns1.Name, buf)
+		assert.Nil(err)
+		respW := httptest.NewRecorder()
+
+		// Make the request
+		obj, err := s.Server.NamespaceSpecificRequest(respW, req)
+		assert.Nil(err)
+		assert.Nil(obj)
+
+		// Check for the index
+		assert.NotZero(respW.HeaderMap.Get("X-Nomad-Index"))
+
+		// Check policy was created
+		state := s.Agent.server.State()
+		out, err := state.NamespaceByName(nil, ns1.Name)
+		assert.Nil(err)
+		assert.NotNil(out)
+
+		ns1.CreateIndex, ns1.ModifyIndex = out.CreateIndex, out.ModifyIndex
+		assert.Equal(ns1.Name, out.Name)
+		assert.Equal(ns1, out)
+	})
+}
+
+func TestHTTP_NamespaceDelete(t *testing.T) {
+	assert := assert.New(t)
+	t.Parallel()
+	httpTest(t, nil, func(s *TestAgent) {
+		ns1 := mock.Namespace()
+		args := structs.NamespaceUpsertRequest{
+			Namespaces:   []*structs.Namespace{ns1},
+			WriteRequest: structs.WriteRequest{Region: "global"},
+		}
+		var resp structs.GenericResponse
+		assert.Nil(s.Agent.RPC("Namespace.UpsertNamespaces", &args, &resp))
+
+		// Make the HTTP request
+		req, err := http.NewRequest("DELETE", "/v1/namespace/"+ns1.Name, nil)
+		assert.Nil(err)
+		respW := httptest.NewRecorder()
+
+		// Make the request
+		obj, err := s.Server.NamespaceSpecificRequest(respW, req)
+		assert.Nil(err)
+		assert.Nil(obj)
+
+		// Check for the index
+		assert.NotZero(respW.HeaderMap.Get("X-Nomad-Index"))
+
+		// Check policy was created
+		state := s.Agent.server.State()
+		out, err := state.NamespaceByName(nil, ns1.Name)
+		assert.Nil(err)
+		assert.Nil(out)
+	})
+}

helper/raftutil/generate_msgtypes.sh

@@ -13,13 +13,16 @@ var msgTypeNames = map[structs.MessageType]string{
 EOF
 
     cat ../../nomad/structs/structs.go \
-        | grep -A500 'MessageType = iota' \
-        | grep -v -e '//' \
+        | grep -A500 'MessageType = 0' \
+        | grep -v -e '//'              \
+        | grep -v -e '^$'              \
         | awk '/^\)$/ { exit; } /.*/ { printf "  structs.%s: \"%s\",\n", $1, $1}'
 
     echo '}'
 }
 
+echo "==> Generating type map..."
 generate_file > msgtypes.go
 
+echo "==> Formatting type map..."
 gofmt -w msgtypes.go