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* Added /healthz support. Fixed IsHealthy logic. Added tests for both. Added healthz http handler.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| // Copyright 2019 Google LLC | ||
| // | ||
| // 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 | ||
| // | ||
| // https://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. | ||
|
|
||
| package healthz | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "github.com/ampproject/amppackager/packager/certcache" | ||
| "net/http" | ||
| ) | ||
|
|
||
| type Healthz struct { | ||
| certHandler certcache.CertHandler | ||
| } | ||
|
|
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| func New(certHandler certcache.CertHandler) (*Healthz, error) { | ||
| return &Healthz{certHandler}, nil | ||
| } | ||
|
|
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| func (this *Healthz) ServeHTTP(resp http.ResponseWriter, req *http.Request) { | ||
| // Follow https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/ | ||
| err := this.certHandler.IsHealthy() | ||
| if err != nil { | ||
| resp.WriteHeader(500) | ||
| resp.Write([]byte(fmt.Sprintf("not healthy: %v", err))) | ||
| } else { | ||
| resp.WriteHeader(200) | ||
| resp.Write([]byte("ok")) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| // Copyright 2019 Google LLC | ||
| // | ||
| // 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 | ||
| // | ||
| // https://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. | ||
|
|
||
| package healthz | ||
|
|
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| import ( | ||
| "crypto/x509" | ||
| "net/http" | ||
| "testing" | ||
|
|
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| "github.com/ampproject/amppackager/packager/mux" | ||
| "github.com/pkg/errors" | ||
|
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| pkgt "github.com/ampproject/amppackager/packager/testing" | ||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| ) | ||
|
|
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| type fakeHealthyCertHandler struct { | ||
| } | ||
|
|
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| func (this fakeHealthyCertHandler) GetLatestCert() *x509.Certificate { | ||
| return pkgt.Certs[0] | ||
| } | ||
|
|
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| func (this fakeHealthyCertHandler) IsHealthy() error { | ||
| return nil | ||
| } | ||
|
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| type fakeNotHealthyCertHandler struct { | ||
| } | ||
|
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| func (this fakeNotHealthyCertHandler) GetLatestCert() *x509.Certificate { | ||
| return pkgt.Certs[0] | ||
| } | ||
|
|
||
| func (this fakeNotHealthyCertHandler) IsHealthy() error { | ||
| return errors.New("random error") | ||
| } | ||
|
|
||
| func TestHealthzOk(t *testing.T) { | ||
| handler, err := New(fakeHealthyCertHandler{}) | ||
| require.NoError(t, err) | ||
| resp := pkgt.Get(t, mux.New(nil, nil, nil, handler), "/healthz") | ||
| assert.Equal(t, http.StatusOK, resp.StatusCode, "ok", resp) | ||
| } | ||
|
|
||
| func TestHealthzFail(t *testing.T) { | ||
| handler, err := New(fakeNotHealthyCertHandler{}) | ||
| require.NoError(t, err) | ||
| resp := pkgt.Get(t, mux.New(nil, nil, nil, handler), "/healthz") | ||
| assert.Equal(t, http.StatusInternalServerError, resp.StatusCode, "error", resp) | ||
| } |
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