update post

Signed-off-by: zhaohuabing <zhaohuabing@gmail.com>

README.md

@@ -1,3 +1,3 @@
-# Istio 运维手册
+# Istio 运维实战
 
 [在线阅读](https://istio-operation-bible.aeraki.net/)

config.toml

@@ -1,4 +1,5 @@
-baseURL = "/"
+#baseURL = "/"
+baseURL="https://www.zhaohuabing.com/istio-guide/"
 title = "Istio 运维实战"
 
 # Language settings
@@ -66,8 +67,8 @@ id = "UA-00000000-0"
 # Language configuration
 
 [languages.zh]
-title = "Istio 运维实战"
-description = "Istio 运维实战"
+title = "Envoy 学习笔记"
+description = "Envoy 学习笔记"
 languageName ="中文"
 contentDir = "content/zh"
 time_format_default = "2006.02.01"
@@ -90,8 +91,8 @@ time_format_blog = "2006.02.01"
 section = ["HTML", "print", "RSS"]
 
 [params]
-copyright = "Aeraki Mesh"
-privacy_policy = "https://www.aeraki.net/"
+copyright = "Huabing Blog"
+privacy_policy = "https://www.zhaohuabing.com/"
 
 # First one is picked as the Twitter card image if not set on page.
 # images = ["images/project-illustration.png"]
@@ -112,12 +113,12 @@ version = "0.0"
 
 # A link to latest version of the docs. Used in the "version-banner" partial to
 # point people to the main doc site.
-url_latest_version = "https://github.com/aeraki-mesh/istio-operation-bible"
+url_latest_version = "https://zhaohuabing.com/istio-guide"
 
 # Repository configuration (URLs for in-page links to opening issues and suggesting changes)
-github_repo = "https://github.com/aeraki-mesh/istio-operation-bible"
+github_repo = "https://github.com/zhaohuabing/istio-guide"
 # An optional link to a related project repo. For example, the sibling repository where your product code lives.
-#github_project_repo = "https://github.com/aeraki-mesh/aeraki"
+#github_project_repo = "https://github.com/google/docsy"
 
 # Specify a value here if your content directory is not in your repo's root directory
 # github_subdir = ""
@@ -173,10 +174,21 @@ no = 'Sorry to hear that. Please <a href="https://github.com/USERNAME/REPOSITORY
 enable = false
 
 [params.links]
+# End user relevant links. These will show up on left side of footer and in the community page if you have one.
+[[params.links.user]]
+  name = "Email"
+  url = "mailto:zhaohuabing@zhaohuabing.com"
+  icon = "fa fa-envelope"
+  desc = "Discussion and help from your fellow users"
+[[params.links.user]]
+  name ="Twitter"
+  url = "https://twitter.com/zhaohuabing"
+  icon = "fab fa-twitter"
+  desc = "Follow us on Twitter to get the latest news!"
 # Developer relevant links. These will show up on right side of footer and in the community page if you have one.
 [[params.links.developer]]
   name = "GitHub"
-  url = "https://github.com/aeraki-mesh/istio-operation-bible"
+  url = "https://github.com/zhaohuabing/istio-guide"
   icon = "fab fa-github"
   desc = "Development takes place here!"
 [params.plantuml]

content/zh/_index.html

@@ -1,6 +1,6 @@
 +++
-title = "Istio 运维实战"
-linkTitle = "Istio 运维实战"
+title = "Istio 运维实战 "
+linkTitle = "Istio 运维实战 "
 
 +++
 

content/zh/docs/debug-istio/envoy-log/_index.md

@@ -1,5 +1,5 @@
 ---
-title: "Envoy 日志调试指南"
+title: "Envoy 日志分析"
 linkTitle: ""
 weight: 1
 date: 2022-07-06

content/zh/docs/debug-istio/istio-debug/_index.md

@@ -0,0 +1,35 @@
+---
+title: "Istio 调试端口"
+linkTitle: ""
+weight: 1
+date: 2022-10-11
+description: 
+---
+
+
+## Istio 调试接口
+
+Istio 提供了一个调试端口 15014，通过该端口可以查看到 istiod 内部的大量调试信息，包括 istiod 的内存、cpu 使用情况，xds 缓存信息，连接到 istio 的代理，cluster 和 endpoint 信息等等。
+
+可以通过下面的命令将 15014 端口 port forward 到 localhost：
+
+```bash
+k -n istio-system port-forward svc/istiod 15014
+```
+
+通过浏览器访问 ```http://127.0.0.1:15014/debug```， 可以看到调试端口支持获取的所有信息。
+
+![istio-debug](image/istio-debug.png)
+
+## 查看 istiod 内存占用
+
+将 istio 调试端口 port forward 到 localhost 后，可以采用下面的命令分析 istiod 的内存使用情况：
+
+```bash
+go tool pprof -http=:8080 localhost:15014/debug/pprof/heap
+```
+
+该命令以 istio 调试端口输出的 heap 信息为输入，在 8080 端口上提供了 istiod 内存的详细分析。
+
+![istio-heap](image/istio-heap.png)
+

content/zh/docs/tricks/_index.md

@@ -0,0 +1,7 @@
+---
+title: "Istio 小技巧"
+linkTitle: "Istio 小技巧"
+weight: 90
+description: >
+  一些 Istio 小技巧
+---

content/zh/docs/tricks/direct-response/_index.md

@@ -0,0 +1,68 @@
+---
+title: "directResoponse"
+weight: 1
+date: 2022-10-17
+description: >
+  代理对符合某个条件的 HTTP 请求直接返回一个响应。
+---
+
+有时候我们希望 gateway/sidecar 能直接向客户端返回一个 HTTP response，而不用交给应用程序处理。
+
+## 1.15 版本之前
+
+可以通过 EnvoyFilter 来修改 HTTP Route，为匹配某个条件的 HTTP 请求直接返回指定的内容。例如，下面的 EnvoyFilter 为 ingress gateway 收到的 http://*:80/direct 直接返回一个 200 response，消息体为 ```hello world```。：
+
+```yaml
+apiVersion: networking.istio.io/v1alpha3
+kind: EnvoyFilter
+metadata:
+  name: direct
+spec:
+  workloadSelector:
+    labels:
+      istio: ingressgateway
+  configPatches:
+  - applyTo: HTTP_ROUTE
+    match:
+      context: GATEWAY
+      routeConfiguration:
+        portNumber: 80
+    patch:
+      operation: INSERT_FIRST
+      value:
+        name: direct
+        match:
+          path: /direct
+        directResponse:
+          body:
+            inlineString: 'hello world'
+          status: 200
+```
+
+## 1.15 及之后版本
+
+1.15 版本开始，VS 支持设置 directResponse，如下所示：
+
+```yaml
+apiVersion: networking.istio.io/v1alpha3
+kind: VirtualService
+metadata:
+  name: ratings-route
+spec:
+  hosts:
+  - ratings.prod.svc.cluster.local
+  http:
+  - match:
+    - uri:
+        exact: /v1/getProductRatings
+    directResponse:
+      status: 503
+      body:
+        string: "unknown error"
+  ...
+```
+
+## 参考文档
+
+* EnvoyFilter https://istio.io/latest/docs/reference/config/networking/envoy-filter/
+* HTTPDirectResponse https://istio.io/latest/docs/reference/config/networking/virtual-service/#HTTPDirectResponse