mirror of https://github.com/istio/istio.io.git
add otel telemetry doc (#10977)
* add otel telemetry doc * fix nit * fix gen * update content * remove patch meshconfig * fix test.sh * fix probability of failure
This commit is contained in:
zirain
GitHub
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6425d539e2
commit
7a90100810
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@ -661,11 +661,13 @@ OpenTelemetry
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openusage.org
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openusage.org
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OpenSSL
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OpenSSL
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openssl
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openssl
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OpenTelemetry
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OpenTracing
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OpenTracing
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operationalize
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operationalize
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optname
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optname
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OS-level
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OS-level
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Ostrowski
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Ostrowski
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otel-collector
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outsized
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outsized
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overridden
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overridden
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p50
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p50
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@ -0,0 +1,25 @@
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#!/bin/bash
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# shellcheck disable=SC2034,SC2153,SC2155,SC2164
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# Copyright Istio Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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####################################################################################################
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# WARNING: THIS IS AN AUTO-GENERATED FILE, DO NOT EDIT. PLEASE MODIFY THE ORIGINAL MARKDOWN FILE:
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# boilerplates/start-otel-collector-service.md
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####################################################################################################
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bpsnip_start_otel_collector_service__1() {
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kubectl apply -f samples/open-telemetry/otel.yaml
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}
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@ -0,0 +1,7 @@
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---
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---
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* Start the [otel-collector]({{< github_tree >}}/samples/open-telemetry) sample.
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{{< text bash >}}
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$ kubectl apply -f @samples/open-telemetry/otel.yaml@
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{{< /text >}}
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@ -0,0 +1,203 @@
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---
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title: OpenTelemetry
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description: This task shows you how to configure Envoy proxies to send access logs with OpenTelemetry collector.
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weight: 10
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keywords: [telemetry,logs]
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owner: istio/wg-policies-and-telemetry-maintainers
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test: yes
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---
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The Envoy proxies can be configured to export their [access logs](https://www.envoyproxy.io/docs/envoy/latest/configuration/observability/access_log/usage) in [OpenTelemetry format](https://www.envoyproxy.io/docs/envoy/latest/api-v3/extensions/access_loggers/open_telemetry/v3/logs_service.proto).
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In this example, the proxies send access logs to an [OpenTelemetry collector](https://github.com/open-telemetry/opentelemetry-collector), which is configured to print the logs to standard output.
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The standard output of the OpenTelemetry collector can then be accessed via the `kubectl logs` command.
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{{< boilerplate before-you-begin-egress >}}
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{{< boilerplate start-httpbin-service >}}
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{{< boilerplate start-otel-collector-service >}}
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## Enable Envoy's access logging
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To enable access logging, use the [Telemetry API](/docs/tasks/observability/telemetry/).
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Edit `MeshConfig` to add an OpenTelemetry provider, named `otel`. This involves adding an extension provider stanza:
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{{< text yaml >}}
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extensionProviders:
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- name: otel
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envoyOtelAls:
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service: otel-collector.istio-system.svc.cluster.local
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port: 4317
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{{< /text >}}
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The final configuration should look something like:
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{{< text yaml >}}
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: istio
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namespace: istio-system
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data:
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mesh: |-
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accessLogFile: /dev/stdout
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defaultConfig:
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discoveryAddress: istiod.istio-system.svc:15012
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proxyMetadata: {}
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tracing:
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zipkin:
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address: zipkin.istio-system:9411
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enablePrometheusMerge: true
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extensionProviders:
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- name: otel
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envoyOtelAls:
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service: otel-collector.istio-system.svc.cluster.local
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port: 4317
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rootNamespace: istio-system
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trustDomain: cluster.local
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meshNetworks: 'networks: {}'
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{{< /text >}}
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Next, add a Telemetry resource that tells Istio to send access logs to the OpenTelemetry collector.
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{{< text bash >}}
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$ cat <<EOF | kubectl apply -n default -f -
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apiVersion: telemetry.istio.io/v1alpha1
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kind: Telemetry
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metadata:
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name: sleep-logging
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spec:
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selector:
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matchLabels:
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app: sleep
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accessLogging:
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- providers:
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- name: otel
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EOF
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{{< /text >}}
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The above example uses the `otel` access log provider, and we do not configure anything other than default settings.
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Similar configuration can also be applied on an individual namespace, or to an individual workload, to control logging at a fine grained level.
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For more information about using the Telemetry API, see the [Telemetry API overview](/docs/tasks/observability/telemetry/).
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### Using Mesh Config
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If you used an `IstioOperator` CR to install Istio, add the following field to your configuration:
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{{< text yaml >}}
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spec:
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meshConfig:
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accessLogFile: /dev/stdout
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extensionProviders:
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- name: otel
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envoyOtelAls:
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service: otel-collector.istio-system.svc.cluster.local
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port: 4317
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defaultProviders:
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accessLogging:
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- envoy
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- otel
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{{< /text >}}
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Otherwise, add the equivalent setting to your original `istioctl install` command, for example:
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{{< text syntax=bash snip_id=none >}}
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$ istioctl install -f <your-istio-operator-config-file>
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{{< /text >}}
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## Default access log format
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Istio will use the following default access log format if `accessLogFormat` is not specified:
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{{< text plain >}}
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[%START_TIME%] \"%REQ(:METHOD)% %REQ(X-ENVOY-ORIGINAL-PATH?:PATH)% %PROTOCOL%\" %RESPONSE_CODE% %RESPONSE_FLAGS% %RESPONSE_CODE_DETAILS% %CONNECTION_TERMINATION_DETAILS%
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\"%UPSTREAM_TRANSPORT_FAILURE_REASON%\" %BYTES_RECEIVED% %BYTES_SENT% %DURATION% %RESP(X-ENVOY-UPSTREAM-SERVICE-TIME)% \"%REQ(X-FORWARDED-FOR)%\" \"%REQ(USER-AGENT)%\" \"%REQ(X-REQUEST-ID)%\"
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\"%REQ(:AUTHORITY)%\" \"%UPSTREAM_HOST%\" %UPSTREAM_CLUSTER% %UPSTREAM_LOCAL_ADDRESS% %DOWNSTREAM_LOCAL_ADDRESS% %DOWNSTREAM_REMOTE_ADDRESS% %REQUESTED_SERVER_NAME% %ROUTE_NAME%\n
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{{< /text >}}
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The following table shows an example using the default access log format for a request sent from `sleep` to `httpbin`:
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| Log operator | access log in sleep | access log in httpbin |
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|--------------|---------------------|-----------------------|
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| `[%START_TIME%]` | `[2020-11-25T21:26:18.409Z]` | `[2020-11-25T21:26:18.409Z]`
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| `\"%REQ(:METHOD)% %REQ(X-ENVOY-ORIGINAL-PATH?:PATH)% %PROTOCOL%\"` | `"GET /status/418 HTTP/1.1"` | `"GET /status/418 HTTP/1.1"`
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| `%RESPONSE_CODE%` | `418` | `418`
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| `%RESPONSE_FLAGS%` | `-` | `-`
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| `%RESPONSE_CODE_DETAILS%` | `via_upstream` | `via_upstream`
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| `%CONNECTION_TERMINATION_DETAILS%` | `-` | `-`
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| `\"%UPSTREAM_TRANSPORT_FAILURE_REASON%\"` | `"-"` | `"-"`
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| `%BYTES_RECEIVED%` | `0` | `0`
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| `%BYTES_SENT%` | `135` | `135`
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| `%DURATION%` | `4` | `3`
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| `%RESP(X-ENVOY-UPSTREAM-SERVICE-TIME)%` | `4` | `1`
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| `\"%REQ(X-FORWARDED-FOR)%\"` | `"-"` | `"-"`
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| `\"%REQ(USER-AGENT)%\"` | `"curl/7.73.0-DEV"` | `"curl/7.73.0-DEV"`
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| `\"%REQ(X-REQUEST-ID)%\"` | `"84961386-6d84-929d-98bd-c5aee93b5c88"` | `"84961386-6d84-929d-98bd-c5aee93b5c88"`
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| `\"%REQ(:AUTHORITY)%\"` | `"httpbin:8000"` | `"httpbin:8000"`
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| `\"%UPSTREAM_HOST%\"` | `"10.44.1.27:80"` | `"127.0.0.1:80"`
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| `%UPSTREAM_CLUSTER%` | <code>outbound|8000||httpbin.foo.svc.cluster.local</code> | <code>inbound|8000||</code>
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| `%UPSTREAM_LOCAL_ADDRESS%` | `10.44.1.23:37652` | `127.0.0.1:41854`
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| `%DOWNSTREAM_LOCAL_ADDRESS%` | `10.0.45.184:8000` | `10.44.1.27:80`
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| `%DOWNSTREAM_REMOTE_ADDRESS%` | `10.44.1.23:46520` | `10.44.1.23:37652`
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| `%REQUESTED_SERVER_NAME%` | `-` | `outbound_.8000_._.httpbin.foo.svc.cluster.local`
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| `%ROUTE_NAME%` | `default` | `default`
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## Test the access log
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1. Send a request from `sleep` to `httpbin`:
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{{< text bash >}}
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$ kubectl exec "$SOURCE_POD" -c sleep -- curl -sS -v httpbin:8000/status/418
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...
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< HTTP/1.1 418 Unknown
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< server: envoy
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...
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-=[ teapot ]=-
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_...._
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.' _ _ `.
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| ."` ^ `". _,
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\_;`"---"`|//
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| ;/
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\_ _/
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`"""`
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{{< /text >}}
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1. Check `otel-collector`'s log:
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{{< text bash >}}
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$ kubectl logs -l app=otel-collector -n istio-system
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[2020-11-25T21:26:18.409Z] "GET /status/418 HTTP/1.1" 418 - via_upstream - "-" 0 135 3 1 "-" "curl/7.73.0-DEV" "84961386-6d84-929d-98bd-c5aee93b5c88" "httpbin:8000" "127.0.0.1:80" inbound|8000|| 127.0.0.1:41854 10.44.1.27:80 10.44.1.23:37652 outbound_.8000_._.httpbin.foo.svc.cluster.local default
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{{< /text >}}
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Note that the messages corresponding to the request appear in logs of the Istio proxies of both the source and the destination, `sleep` and `httpbin`, respectively. You can see in the log the HTTP verb (`GET`), the HTTP path (`/status/418`), the response code (`418`) and other [request-related information](https://www.envoyproxy.io/docs/envoy/latest/configuration/observability/access_log/usage#format-rules).
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## Cleanup
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Shutdown the [sleep]({{< github_tree >}}/samples/sleep) and [httpbin]({{< github_tree >}}/samples/httpbin) services:
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{{< text bash >}}
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$ kubectl delete telemetry sleep-logging
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$ kubectl delete -f @samples/sleep/sleep.yaml@
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$ kubectl delete -f @samples/httpbin/httpbin.yaml@
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$ kubectl delete -f @samples/open-telemetry/otel.yaml@
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{{< /text >}}
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### Disable Envoy's access logging
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Remove, or set to `""`, the `meshConfig.extensionProviders` and `meshConfig.defaultProviders` setting in your Istio install configuration.
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{{< tip >}}
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In the example below, replace `default` with the name of the profile you used when you installed Istio.
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{{< /tip >}}
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{{< text bash >}}
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$ istioctl install --set profile=default
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✔ Istio core installed
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✔ Istiod installed
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✔ Ingress gateways installed
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✔ Installation complete
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{{< /text >}}
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@ -0,0 +1,141 @@
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#!/bin/bash
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# shellcheck disable=SC2034,SC2153,SC2155,SC2164
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# Copyright Istio Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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####################################################################################################
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# WARNING: THIS IS AN AUTO-GENERATED FILE, DO NOT EDIT. PLEASE MODIFY THE ORIGINAL MARKDOWN FILE:
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# docs/tasks/observability/logs/otel-provider/index.md
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####################################################################################################
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source "content/en/boilerplates/snips/before-you-begin-egress.sh"
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source "content/en/boilerplates/snips/start-httpbin-service.sh"
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source "content/en/boilerplates/snips/start-otel-collector-service.sh"
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! read -r -d '' snip_enable_envoys_access_logging_1 <<\ENDSNIP
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extensionProviders:
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- name: otel
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envoyOtelAls:
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service: otel-collector.istio-system.svc.cluster.local
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port: 4317
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ENDSNIP
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! read -r -d '' snip_enable_envoys_access_logging_2 <<\ENDSNIP
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: istio
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namespace: istio-system
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data:
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mesh: |-
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accessLogFile: /dev/stdout
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defaultConfig:
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discoveryAddress: istiod.istio-system.svc:15012
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proxyMetadata: {}
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tracing:
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zipkin:
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address: zipkin.istio-system:9411
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enablePrometheusMerge: true
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extensionProviders:
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- name: otel
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envoyOtelAls:
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service: otel-collector.istio-system.svc.cluster.local
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port: 4317
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rootNamespace: istio-system
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trustDomain: cluster.local
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meshNetworks: 'networks: {}'
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ENDSNIP
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snip_enable_envoys_access_logging_3() {
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cat <<EOF | kubectl apply -n default -f -
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apiVersion: telemetry.istio.io/v1alpha1
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kind: Telemetry
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metadata:
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name: sleep-logging
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spec:
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selector:
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matchLabels:
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app: sleep
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accessLogging:
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- providers:
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- name: otel
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EOF
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}
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! read -r -d '' snip_using_mesh_config_1 <<\ENDSNIP
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spec:
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meshConfig:
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accessLogFile: /dev/stdout
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extensionProviders:
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- name: otel
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envoyOtelAls:
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service: otel-collector.istio-system.svc.cluster.local
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port: 4317
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defaultProviders:
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accessLogging:
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||||||
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- envoy
|
||||||
|
- otel
|
||||||
|
ENDSNIP
|
||||||
|
|
||||||
|
! read -r -d '' snip_default_access_log_format_1 <<\ENDSNIP
|
||||||
|
[%START_TIME%] \"%REQ(:METHOD)% %REQ(X-ENVOY-ORIGINAL-PATH?:PATH)% %PROTOCOL%\" %RESPONSE_CODE% %RESPONSE_FLAGS% %RESPONSE_CODE_DETAILS% %CONNECTION_TERMINATION_DETAILS%
|
||||||
|
\"%UPSTREAM_TRANSPORT_FAILURE_REASON%\" %BYTES_RECEIVED% %BYTES_SENT% %DURATION% %RESP(X-ENVOY-UPSTREAM-SERVICE-TIME)% \"%REQ(X-FORWARDED-FOR)%\" \"%REQ(USER-AGENT)%\" \"%REQ(X-REQUEST-ID)%\"
|
||||||
|
\"%REQ(:AUTHORITY)%\" \"%UPSTREAM_HOST%\" %UPSTREAM_CLUSTER% %UPSTREAM_LOCAL_ADDRESS% %DOWNSTREAM_LOCAL_ADDRESS% %DOWNSTREAM_REMOTE_ADDRESS% %REQUESTED_SERVER_NAME% %ROUTE_NAME%\n
|
||||||
|
ENDSNIP
|
||||||
|
|
||||||
|
snip_test_the_access_log_1() {
|
||||||
|
kubectl exec "$SOURCE_POD" -c sleep -- curl -sS -v httpbin:8000/status/418
|
||||||
|
}
|
||||||
|
|
||||||
|
! read -r -d '' snip_test_the_access_log_1_out <<\ENDSNIP
|
||||||
|
...
|
||||||
|
< HTTP/1.1 418 Unknown
|
||||||
|
< server: envoy
|
||||||
|
...
|
||||||
|
-=[ teapot ]=-
|
||||||
|
|
||||||
|
_...._
|
||||||
|
.' _ _ `.
|
||||||
|
| ."` ^ `". _,
|
||||||
|
\_;`"---"`|//
|
||||||
|
| ;/
|
||||||
|
\_ _/
|
||||||
|
`"""`
|
||||||
|
ENDSNIP
|
||||||
|
|
||||||
|
snip_test_the_access_log_2() {
|
||||||
|
kubectl logs -l app=otel-collector -n istio-system
|
||||||
|
}
|
||||||
|
|
||||||
|
! read -r -d '' snip_test_the_access_log_2_out <<\ENDSNIP
|
||||||
|
[2020-11-25T21:26:18.409Z] "GET /status/418 HTTP/1.1" 418 - via_upstream - "-" 0 135 3 1 "-" "curl/7.73.0-DEV" "84961386-6d84-929d-98bd-c5aee93b5c88" "httpbin:8000" "127.0.0.1:80" inbound|8000|| 127.0.0.1:41854 10.44.1.27:80 10.44.1.23:37652 outbound_.8000_._.httpbin.foo.svc.cluster.local default
|
||||||
|
ENDSNIP
|
||||||
|
|
||||||
|
snip_cleanup_1() {
|
||||||
|
kubectl delete telemetry sleep-logging
|
||||||
|
kubectl delete -f samples/sleep/sleep.yaml
|
||||||
|
kubectl delete -f samples/httpbin/httpbin.yaml
|
||||||
|
kubectl delete -f samples/open-telemetry/otel.yaml
|
||||||
|
}
|
||||||
|
|
||||||
|
snip_disable_envoys_access_logging_1() {
|
||||||
|
istioctl install --set profile=default
|
||||||
|
}
|
||||||
|
|
||||||
|
! read -r -d '' snip_disable_envoys_access_logging_1_out <<\ENDSNIP
|
||||||
|
✔ Istio core installed
|
||||||
|
✔ Istiod installed
|
||||||
|
✔ Ingress gateways installed
|
||||||
|
✔ Installation complete
|
||||||
|
ENDSNIP
|
||||||
|
|
@ -0,0 +1,49 @@
|
||||||
|
#!/usr/bin/env bash
|
||||||
|
# shellcheck disable=SC1090,SC2154,SC2155
|
||||||
|
|
||||||
|
# Copyright Istio 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.
|
||||||
|
|
||||||
|
set -e
|
||||||
|
set -u
|
||||||
|
set -o pipefail
|
||||||
|
|
||||||
|
source "tests/util/samples.sh"
|
||||||
|
|
||||||
|
# @setup profile=demo
|
||||||
|
|
||||||
|
# Start the otel sample
|
||||||
|
startup_otel_sample
|
||||||
|
|
||||||
|
# Apply Telemetry config
|
||||||
|
snip_enable_envoys_access_logging_3
|
||||||
|
|
||||||
|
kubectl label namespace default istio-injection=enabled --overwrite
|
||||||
|
|
||||||
|
# Start the sleep sample
|
||||||
|
startup_sleep_sample
|
||||||
|
export SOURCE_POD=$(kubectl get pod -l app=sleep -o jsonpath='{.items[0].metadata.name}')
|
||||||
|
|
||||||
|
# Start the httpbin sample
|
||||||
|
startup_httpbin_sample
|
||||||
|
|
||||||
|
# Make curl request to httpbin
|
||||||
|
_verify_elided snip_test_the_access_log_1 "$snip_test_the_access_log_1_out"
|
||||||
|
|
||||||
|
|
||||||
|
# Check the logs
|
||||||
|
_verify_contains snip_test_the_access_log_2 "outbound|8000||httpbin.default.svc.cluster.local"
|
||||||
|
|
||||||
|
# @cleanup
|
||||||
|
snip_cleanup_1
|
||||||
|
|
@ -54,6 +54,15 @@ cleanup_httpbin_sample() {
|
||||||
kubectl delete -f samples/httpbin/httpbin.yaml || true
|
kubectl delete -f samples/httpbin/httpbin.yaml || true
|
||||||
}
|
}
|
||||||
|
|
||||||
|
startup_otel_sample() {
|
||||||
|
kubectl apply -f samples/open-telemetry/otel.yaml
|
||||||
|
_wait_for_deployment istio-system otel-collector
|
||||||
|
}
|
||||||
|
|
||||||
|
cleanup_otel_sample() {
|
||||||
|
kubectl delete -f samples/open-telemetry/otel.yaml || true
|
||||||
|
}
|
||||||
|
|
||||||
# Use curl to send an http request to a sample service via ingressgateway.
|
# Use curl to send an http request to a sample service via ingressgateway.
|
||||||
# Usage:
|
# Usage:
|
||||||
# sample_http_request path [ user ]
|
# sample_http_request path [ user ]
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue