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Add 'antctl get bgppolicy' command (antrea-io#6646)
Add `antctl get bgppolicy` agent command to get effective BGP policy applied on the Node. The command is implemented using a new HTTP endpoint (`/bgppolicy`), which will return a `404 Not Found` error if no BGPPolicy has been applied on the Node. For antrea-io#6209 Signed-off-by: Kumar Atish <[email protected]>
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Original file line number | Diff line number | Diff line change |
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// Copyright 2024 Antrea Authors | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
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package bgppolicy | ||
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import ( | ||
"encoding/json" | ||
"net/http" | ||
"reflect" | ||
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"k8s.io/klog/v2" | ||
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"antrea.io/antrea/pkg/agent/apis" | ||
"antrea.io/antrea/pkg/querier" | ||
) | ||
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// HandleFunc returns the function which can handle queries issued by the bgppolicy command. | ||
func HandleFunc(bq querier.AgentBGPPolicyInfoQuerier) http.HandlerFunc { | ||
return func(w http.ResponseWriter, r *http.Request) { | ||
if bq == nil || reflect.ValueOf(bq).IsNil() { | ||
// The error message must match the "FOO is not enabled" pattern to pass antctl e2e tests. | ||
http.Error(w, "bgp is not enabled", http.StatusServiceUnavailable) | ||
return | ||
} | ||
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bgpPolicyName, routerID, localASN, listenPort := bq.GetBGPPolicyInfo() | ||
bgpPolicyResp := apis.BGPPolicyResponse{ | ||
BGPPolicyName: bgpPolicyName, | ||
RouterID: routerID, | ||
LocalASN: localASN, | ||
ListenPort: listenPort, | ||
} | ||
if bgpPolicyName == "" { | ||
http.Error(w, "there is no effective bgp policy applied to the Node", http.StatusNotFound) | ||
return | ||
} | ||
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if err := json.NewEncoder(w).Encode(bgpPolicyResp); err != nil { | ||
w.WriteHeader(http.StatusInternalServerError) | ||
klog.ErrorS(err, "Error when encoding BGPPolicyResp to json") | ||
} | ||
} | ||
} |
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// Copyright 2024 Antrea Authors | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
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package bgppolicy | ||
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import ( | ||
"encoding/json" | ||
"net/http" | ||
"net/http/httptest" | ||
"testing" | ||
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"github.com/stretchr/testify/assert" | ||
"github.com/stretchr/testify/require" | ||
"go.uber.org/mock/gomock" | ||
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"antrea.io/antrea/pkg/agent/apis" | ||
queriertest "antrea.io/antrea/pkg/querier/testing" | ||
) | ||
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func TestBGPPolicyQuery(t *testing.T) { | ||
tests := []struct { | ||
name string | ||
expectedStatus int | ||
expectedResponse apis.BGPPolicyResponse | ||
}{ | ||
{ | ||
name: "bgpPolicyState exists", | ||
expectedStatus: http.StatusOK, | ||
expectedResponse: apis.BGPPolicyResponse{ | ||
BGPPolicyName: "policy-1", | ||
RouterID: "192.168.1.2", | ||
LocalASN: 65000, | ||
ListenPort: 179, | ||
}, | ||
}, | ||
{ | ||
name: "bgpPolicyState does not exist", | ||
expectedStatus: http.StatusNotFound, | ||
}, | ||
} | ||
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for _, tt := range tests { | ||
t.Run(tt.name, func(t *testing.T) { | ||
ctrl := gomock.NewController(t) | ||
q := queriertest.NewMockAgentBGPPolicyInfoQuerier(ctrl) | ||
q.EXPECT().GetBGPPolicyInfo().Return(tt.expectedResponse.BGPPolicyName, tt.expectedResponse.RouterID, | ||
tt.expectedResponse.LocalASN, tt.expectedResponse.ListenPort) | ||
handler := HandleFunc(q) | ||
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req, err := http.NewRequest(http.MethodGet, "", nil) | ||
require.NoError(t, err) | ||
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recorder := httptest.NewRecorder() | ||
handler.ServeHTTP(recorder, req) | ||
assert.Equal(t, tt.expectedStatus, recorder.Code) | ||
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if tt.expectedStatus == http.StatusOK { | ||
var received apis.BGPPolicyResponse | ||
err = json.Unmarshal(recorder.Body.Bytes(), &received) | ||
require.NoError(t, err) | ||
assert.Equal(t, tt.expectedResponse, received) | ||
} | ||
}) | ||
} | ||
} |
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