Kong Api网关简介(一) 安装运行

Kong 是 Mashape 开源的高性能高可用 API 网关和 API 管理服务层。它基于 OpenResty 进行 API 管理，并提供了插件实现 API 的 AOP。最近因工作的需要研究了 Kong 的相关应用实现。

由于本机的8001端口被占所以8001被替换为8003

一.准备

kong 的官方文档提供了基于不同平台的安装方式，为了方便，这里使用 docker-compose 进行。

[root@xxbnz ~]# cd /home/src/

[root@xxbnz src]# ll

total 4

drwxr-xr-x 8 root root 4096 Sep 17 10:09 dnmp

[root@xxbnz src]# mkdir kong-gateway && cd kong-gateway

[root@xxbnz kong-gateway]# ll

total 0

[root@xxbnz kong-gateway]# touch docker-compose.yml

[root@xxbnz kong-gateway]# mkdir config plugins postgresql

[root@xxbnz php72]# cd ../../../kong-gateway/

[root@xxbnz kong-gateway]# ll

total 16

drwxr-xr-x 2 root root 4096 Sep 21 18:26 config

-rw-r--r-- 1 root root 966 Sep 21 18:28 docker-compose.yml

drwxr-xr-x 2 root root 4096 Sep 21 18:26 plugins

drwxr-xr-x 2 root root 4096 Sep 21 18:26 postgresql

上述创建名为 kong-gateway 的目录并且进入，然后在 kong-gateway 目录中创建 docker-compose.yml 文件，并且创建了 config、 plugins、 postgresql 三个文件夹。其中, config 文件夹用于存放 kong 网关配置, plugins 文件夹用于存放自定义插件, postgresql 文件夹用于存放 postgresql 数据文件，这三个文件夹将被挂载到 docker 容器中。 docker-compose.yml 文件定义如下：

version: '3'

services:

postgres:

image: postgres:9.6

ports:

- "5432:5432"

environment:

- POSTGRES_USER=kong

- POSTGRES_DB=kong

- POSTGRES_PASSWORD=kong

- PGDATA=/var/lib/postgresql/data

container_name: kong-database

volumes:

- ./postgresql/data:/var/lib/postgresql/data

kong:

image: kong:latest

container_name: kong

environment:

- KONG_DATABASE=postgres

- KONG_PG_HOST=kong-database

- KONG_PG_USER=kong

- KONG_PG_PASSWORD=kong

- KONG_CASSANDRA_CONTACT_POINTS=kong-database

- KONG_PROXY_ACCESS_LOG=/dev/stdout

- KONG_ADMIN_ACCESS_LOG=/dev/stdout

- KONG_PROXY_ERROR_LOG=/dev/stderr

- KONG_ADMIN_ERROR_LOG=/dev/stderr

ports:

- "8000:8000"

- "8003:8003" //8001:8001 被占用改用8003

- "8443:8443"

- "7946:7946"

- "7946:7946/udp"

volumes:

- ./config:/etc/kong

- ./plugins:/etc/kong/plugins

depends_on:

- postgres

config 文件夹下放置 kong 的配置文件 kong.conf，简单定义如下：

prefix = /etc/kong/

log_level = debug

proxy_listen = 0.0.0.0:8000, 0.0.0.0:8443 ssl

admin_listen = 0.0.0.0:8003, 0.0.0.0:8444 ssl

database = postgres

pg_host = 127.0.0.1

pg_port = 5432

pg_user = kong

pg_password = kong

pg_database = kong

pg_ssl = off

pg_ssl_verify = off

上述准备好后的 kong-gateway文件夹目录如下:

[root@xxbnz kong-gateway]# tree

├── config

│ └── kong.conf

├── docker-compose.yml

├── plugins

└── postgresql

3 directories, 2 files

二.启动

首先准备数据库，执行下面命令：

[root@xxbnz kong-gateway]# docker-compose run kong kong migrations up

Creating network "konggateway_default" with the default driver

Pulling postgres (postgres:9.6)...

9.6: Pulling from library/postgres

802b00ed6f79: Already exists

4e0de21e2180: Pull complete

58b06ac4cd84: Pull complete

14e76b354b47: Pull complete

0f0c9f244b65: Pull complete

37117d8abb6d: Pull complete

8b541f5d818a: Pull complete

7cb4855fcd96: Pull complete

02dac872bc79: Pull complete

260defa8ced6: Pull complete

8d6200d741e7: Pull complete

252375ab8537: Pull complete

56e2f1d2303b: Pull complete

6eb2ae61937d: Pull complete

Digest: sha256:608ce712224026e9c5692a48130635166f710ff6a581542c3dd4d0da767e2a47

Status: Downloaded newer image for postgres:9.6

Creating kong-database ...

Creating kong-database ... done

Pulling kong (kong:latest)...

latest: Pulling from library/kong

3489d1c4660e: Pull complete

97eb239b37ff: Pull complete

136565b6d830: Pull complete

Digest: sha256:eb294641b50cf7aaf97aa65598f6e9483624d621588517f9561e7bec921221e9

Status: Downloaded newer image for kong:latest

migrating core for database kong

core migrated up to: 2015-01-12-175310_skeleton

core migrated up to: 2015-01-12-175310_init_schema

core migrated up to: 2015-11-23-817313_nodes

core migrated up to: 2016-02-29-142793_ttls

core migrated up to: 2016-09-05-212515_retries

core migrated up to: 2016-09-16-141423_upstreams

core migrated up to: 2016-12-14-172100_move_ssl_certs_to_core

core migrated up to: 2016-11-11-151900_new_apis_router_1

core migrated up to: 2016-11-11-151900_new_apis_router_2

core migrated up to: 2016-11-11-151900_new_apis_router_3

core migrated up to: 2016-01-25-103600_unique_custom_id

core migrated up to: 2017-01-24-132600_upstream_timeouts

core migrated up to: 2017-01-24-132600_upstream_timeouts_2

core migrated up to: 2017-03-27-132300_anonymous

core migrated up to: 2017-04-18-153000_unique_plugins_id

core migrated up to: 2017-04-18-153000_unique_plugins_id_2

core migrated up to: 2017-05-19-180200_cluster_events

core migrated up to: 2017-05-19-173100_remove_nodes_table

core migrated up to: 2017-06-16-283123_ttl_indexes

core migrated up to: 2017-07-28-225000_balancer_orderlist_remove

core migrated up to: 2017-10-02-173400_apis_created_at_ms_precision

core migrated up to: 2017-11-07-192000_upstream_healthchecks

core migrated up to: 2017-10-27-134100_consistent_hashing_1

core migrated up to: 2017-11-07-192100_upstream_healthchecks_2

core migrated up to: 2017-10-27-134100_consistent_hashing_2

core migrated up to: 2017-09-14-121200_routes_and_services

core migrated up to: 2017-10-25-180700_plugins_routes_and_services

core migrated up to: 2018-03-27-123400_prepare_certs_and_snis

core migrated up to: 2018-03-27-125400_fill_in_snis_ids

core migrated up to: 2018-03-27-130400_make_ids_primary_keys_in_snis

core migrated up to: 2018-05-17-173100_hash_on_cookie

migrating response-transformer for database kong

response-transformer migrated up to: 2016-05-04-160000_resp_trans_schema_changes

migrating ip-restriction for database kong

ip-restriction migrated up to: 2016-05-24-remove-cache

migrating statsd for database kong

statsd migrated up to: 2017-06-09-160000_statsd_schema_changes

migrating jwt for database kong

jwt migrated up to: 2015-06-09-jwt-auth

jwt migrated up to: 2016-03-07-jwt-alg

jwt migrated up to: 2017-05-22-jwt_secret_not_unique

jwt migrated up to: 2017-07-31-120200_jwt-auth_preflight_default

jwt migrated up to: 2017-10-25-211200_jwt_cookie_names_default

jwt migrated up to: 2018-03-15-150000_jwt_maximum_expiration

migrating cors for database kong

cors migrated up to: 2017-03-14_multiple_orgins

migrating basic-auth for database kong

basic-auth migrated up to: 2015-08-03-132400_init_basicauth

basic-auth migrated up to: 2017-01-25-180400_unique_username

migrating key-auth for database kong

key-auth migrated up to: 2015-07-31-172400_init_keyauth

key-auth migrated up to: 2017-07-31-120200_key-auth_preflight_default

migrating ldap-auth for database kong

ldap-auth migrated up to: 2017-10-23-150900_header_type_default

migrating hmac-auth for database kong

hmac-auth migrated up to: 2015-09-16-132400_init_hmacauth

hmac-auth migrated up to: 2017-06-21-132400_init_hmacauth

migrating datadog for database kong

datadog migrated up to: 2017-06-09-160000_datadog_schema_changes

migrating tcp-log for database kong

tcp-log migrated up to: 2017-12-13-120000_tcp-log_tls

migrating acl for database kong

acl migrated up to: 2015-08-25-841841_init_acl

migrating response-ratelimiting for database kong

response-ratelimiting migrated up to: 2015-08-03-132400_init_response_ratelimiting

response-ratelimiting migrated up to: 2016-08-04-321512_response-rate-limiting_policies

response-ratelimiting migrated up to: 2017-12-19-120000_add_route_and_service_id_to_response_ratelimiting

migrating request-transformer for database kong

request-transformer migrated up to: 2016-05-04-160000_req_trans_schema_changes

migrating rate-limiting for database kong

rate-limiting migrated up to: 2015-08-03-132400_init_ratelimiting

rate-limiting migrated up to: 2016-07-25-471385_ratelimiting_policies

rate-limiting migrated up to: 2017-11-30-120000_add_route_and_service_id

migrating oauth2 for database kong

oauth2 migrated up to: 2015-08-03-132400_init_oauth2

oauth2 migrated up to: 2016-07-15-oauth2_code_credential_id

oauth2 migrated up to: 2016-12-22-283949_serialize_redirect_uri

oauth2 migrated up to: 2016-09-19-oauth2_api_id

oauth2 migrated up to: 2016-12-15-set_global_credentials

oauth2 migrated up to: 2017-04-24-oauth2_client_secret_not_unique

oauth2 migrated up to: 2017-10-19-set_auth_header_name_default

oauth2 migrated up to: 2017-10-11-oauth2_new_refresh_token_ttl_config_value

oauth2 migrated up to: 2018-01-09-oauth2_pg_add_service_id

67 migrations ran

执行过程中将拉取 docker-compose.yml 中定义的 postgres:9.6 镜像和 kong:latest镜像，并执行数据库迁移操作。

迁移完成后，执行下面命令，启动 kong 网关:

[root@xxbnz kong-gateway]# docker-compose up --no-recreate -d

Starting kong-database ... done

Creating kong ...

Creating kong ... done

[root@xxbnz kong-gateway]# docker-compose ps

Name Command State Ports

----------------------------------------------------------------------------------------------------------------------------------------------------

kong /docker-entrypoint.sh kong ... Up 0.0.0.0:7946->7946/tcp, 0.0.0.0:7946->7946/udp, 0.0.0.0:8000->8000/tcp, 8001/tcp,

0.0.0.0:8003->8003/tcp, 0.0.0.0:8443->8443/tcp, 8444/tcp

kong-database docker-entrypoint.sh postgres Up 0.0.0.0:5432->5432/tcp

通过docker ps查看是否已经安装成功

[root@xxbnz kong-gateway]# docker ps

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

58bee35c5789 kong:latest "/docker-entrypoint.…" 45 seconds ago Up 44 seconds 0.0.0.0:7946->7946/tcp, 0.0.0.0:8000->8000/tcp, 0.0.0.0:8003->8003/tcp, 8001/tcp, 0.0.0.0:8443->8443/tcp, 0.0.0.0:7946->7946/udp, 8444/tcp kong

6f3d818e4d1b postgres:9.6 "docker-entrypoint.s…" 3 minutes ago Up 3 minutes

注：各端口映射关系及作用

端口作用

8000 监听http请求

8443 监听https请求

8003 admin api配置http端口

8444 admin api配置https端口

5432 postgresql端口

7946 监听udp请求貌似没啥用还未研究

查看网路端口使用情况:

[root@xxbnz kong-gateway]# netstat -ntlp

Active Internet connections (only servers)

Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name

tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1335/sshd

tcp 0 0 127.0.0.1:32000 0.0.0.0:* LISTEN 1113/java

tcp6 0 0 :::6379 :::* LISTEN 1979/docker-proxy

tcp6 0 0 :::80 :::* LISTEN 4840/docker-proxy

tcp6 0 0 :::8080 :::* LISTEN 1953/docker-proxy

tcp6 0 0 :::8081 :::* LISTEN 2384/docker-proxy

tcp6 0 0 :::5432 :::* LISTEN 12436/docker-proxy

tcp6 0 0 :::8443 :::* LISTEN 13161/docker-proxy

tcp6 0 0 :::443 :::* LISTEN 4814/docker-proxy

tcp6 0 0 :::8000 :::* LISTEN 13218/docker-proxy

tcp6 0 0 :::8001 :::* LISTEN 31964/docker-proxy

tcp6 0 0 :::8002 :::* LISTEN 1189/docker-proxy

tcp6 0 0 :::8003 :::* LISTEN 13189/docker-proxy

tcp6 0 0 :::7946 :::* LISTEN 13230/docker-proxy

tcp6 0 0 :::3306 :::* LISTEN 2378/docker-proxy

这时候控制台执行 curl http://127.0.0.1:8003/status可以看到管理端口输出的状态json。

[root@xxbnz kong-gateway]# curl http://127.0.0.1:8003/status

{"database":{"reachable":true},"server":{"connections_writing":1,"total_requests":1,"connections_handled":1,"connections_accepted":1,"connections_reading":0,"connections_active":1,"connections_waiting":0}}

三.运行

1.Service Object

Kong 中的 Service 对象代表了上游服务的一个抽象，主要由协议、主机名、端口、路径等组成。Service 和路由关联(一个Service可能会被关联至多个路由)。更多参见Kong Admin Api Service Object。

我们首先执行命令创建一个 Service, 这个 Service 名称为 baidu-service，对应的 url 地址为 https://juejin.im/post/5ba97ff95188255c9e02d3e3:

[root@xxbnz ~]# curl -i -X POST \

> --url http://127.0.0.1:8001/services/ \

> --data 'name=juejin-service' \

> --data 'url=https://juejin.im/post/5ba97ff95188255c9e02d3e3'

响应:

HTTP/1.1 201 Created

Date: Tue, 25 Sep 2018 08:20:13 GMT

Content-Type: application/json; charset=utf-8

Connection: keep-alive

Access-Control-Allow-Origin: *

Server: kong/0.14.1

Content-Length: 307

{"host":"juejin.im","created_at":1537863613,"connect_timeout":60000,"id":"b7e8bfda-c659-41de-9392-2b03886cb887","protocol":"http","name":"juejin-service","read_timeout":60000,"port":80,"path":"\/post\/5ba97ff95188255c9e02d3e3","updated_at":1537863613,"retries":5,"write_timeout":60000}

可以通过以下命令查看所有已创建的 Service:

[root@xxbnz ~]# curl -i -X GET --url http://127.0.0.1:8003/services/

响应:

HTTP/1.1 200 OK

Date: Tue, 25 Sep 2018 08:21:09 GMT

Content-Type: application/json; charset=utf-8

Connection: keep-alive

Access-Control-Allow-Origin: *

Server: kong/0.14.1

Content-Length: 330

{"next":null,"data":[{"host":"juejin.im","created_at":1537863613,"connect_timeout":60000,"id":"b7e8bfda-c659-41de-9392-2b03886cb887","protocol":"http","name":"juejin-service","read_timeout":60000,"port":80,"path":"\/post\/5ba97ff95188255c9e02d3e3","updated_at":1537863613,"retries":5,"write_timeout":60000}]}

也可以根据 serviceId 查看某个具体的 Service:

[root@xxbnz ~]# curl -i -X GET --url http://127.0.0.1:8003/services/b7e8bfda-c659-41de-9392-2b03886cb887

响应:

HTTP/1.1 200 OK

Date: Tue, 25 Sep 2018 08:50:07 GMT

Content-Type: application/json; charset=utf-8

Connection: keep-alive

Access-Control-Allow-Origin: *

Server: kong/0.14.1

Content-Length: 307

2.Route Object

路由定义了匹配客户端请求的规则，每一个路由关联一个 Service，每一个 Service 有可能被多个路由关联，每一个匹配到指定的路由请求将被代理到它关联的 Service 上。更多参见Kong Admin Api Route Object。[https://docs.konghq.com/0.14.x/admin-api/#route-object]

首先创建一个Route：

[root@xxbnz ~]# curl -i -X POST \

> --url http://localhost:8003/services/juejin-service/routes \

> --data 'hosts[]=juejin.im'

响应:

HTTP/1.1 201 Created

Date: Tue, 25 Sep 2018 08:58:39 GMT

Content-Type: application/json; charset=utf-8

Connection: keep-alive

Access-Control-Allow-Origin: *

Server: kong/0.14.1

Content-Length: 306

{"created_at":1537865919,"strip_path":true,"hosts":["juejin.im"],"preserve_host":false,"regex_priority":0,"updated_at":1537865919,"paths":null,"service":{"id":"b7e8bfda-c659-41de-9392-2b03886cb887"},"methods":null,"protocols":["http","https"],"id":"00456c6b-81d0-4846-ba8c-82a02cded5c0"}

可以通过以下命令查看所有已创建的 Routes:

[root@xxbnz ~]# curl -i -X GET --url http://127.0.0.1:8003/routes

响应:

HTTP/1.1 200 OK

Date: Tue, 25 Sep 2018 09:01:08 GMT

Content-Type: application/json; charset=utf-8

Connection: keep-alive

Access-Control-Allow-Origin: *

Server: kong/0.14.1

Content-Length: 329

{"next":null,"data":[{"created_at":1537865919,"strip_path":true,"hosts":["juejin.im"],"preserve_host":false,"regex_priority":0,"updated_at":1537865919,"paths":null,"service":{"id":"b7e8bfda-c659-41de-9392-2b03886cb887"},"methods":null,"protocols":["http","https"],"id":"00456c6b-81d0-4846-ba8c-82a02cded5c0"}]}

也可以根据 routeId 查看某个具体的 Route:

[root@xxbnz ~]# curl -i -X GET --url http://127.0.0.1:8003/routes/00456c6b-81d0-4846-ba8c-82a02cded5c0

响应:

HTTP/1.1 200 OK

Date: Tue, 25 Sep 2018 09:02:40 GMT

Content-Type: application/json; charset=utf-8

Connection: keep-alive

Access-Control-Allow-Origin: *

Server: kong/0.14.1

Content-Length: 278

{"created_at":1537865919,"strip_path":true,"hosts":["juejin.im"],"preserve_host":false,"regex_priority":0,"updated_at":1537865919,"service":{"id":"b7e8bfda-c659-41de-9392-2b03886cb887"},"protocols":["http","https"],"id":"00456c6b-81d0-4846-ba8c-82a02cded5c0"}

3.运行

先执行如下命令执行:

[root@xxbnz ~]# curl -i -X GET --url http://127.0.0.1:8000

响应:

HTTP/1.1 404 Not Found

Date: Tue, 25 Sep 2018 08:45:53 GMT

Content-Type: application/json; charset=utf-8

Connection: keep-alive

Server: kong/0.14.1

Content-Length: 58

{"message":"no route and no API found with those values"}

发现返回的是404 Not Found，因为我们在 route 中定义了 host，所以需要在 header 中指定 host。根据 Kong Admin Api 要求，添加 Route 时，methods、hosts、path三者至少选择一个。修改请求如下：

[root@xxbnz ~]# curl -i -X GET \

> --url http://127.0.0.1:8000/ \

> --header 'Host: juejin.im'

响应:

HTTP/1.1 200 OK

Content-Type: text/html; charset=UTF-8

Transfer-Encoding: chunked

Connection: keep-alive

Server: openresty/1.11.2.3

Vary: Accept-Encoding

X-Powered-By: PHP/7.1.19

Cache-Control: no-cache

Date: Tue, 25 Sep 2018 09:13:15 GMT

Set-Cookie: XSRF-TOKEN=eyJpdiI6Im1pN1paRWlocXhZWktHQzdEM1ZsZWc9PSIsInZhbHVlIjoiZ2paN3AyVnJDSkVVU0dnektqNjFTUnNaMUxaV1crNVFybTB5YnpuM2JnTzJ4WkdkaGJteldrV0lzNDcxRkpZQXBRUlZRZjhqVVwvVXR3VWRZaHN6bk5BPT0iLCJtYWMiOiJhZjRlMWE4MDc2MzNmMGUzNGQ5ZjI3YTA1YzBjNmVlYzMwMTQwMWM0OTI0YmRiZTc0OGY2OTNlMmFmNWVlZWI0In0%3D; expires=Tue, 25-Sep-2018 11:13:15 GMT; Max-Age=7200; path=/

Set-Cookie: laravel_session=eyJpdiI6InZmUFVPdWtUc2tycUxHZW9sWnJaUHc9PSIsInZhbHVlIjoiQTRVaUR5Umo2V2VMeVRSc2FzcWZOcXFxa0ZWd3pZYmNOZ1lSVndyaXZsWnpxSFJZQ2dpMjJiSFRrVWV4eVRoOWsxSExCbkJLalIzXC9pNGtUdCs3QnBBPT0iLCJtYWMiOiIwNWFhMzk4MzRhZDRmMjZkNDdlODA4NDlkNDRlMzlhMjliNDY4MDcxNTIwN2IwZTJiYThlYzFhMGFhMTczMzNmIn0%3D; expires=Tue, 25-Sep-2018 11:13:15 GMT; Max-Age=7200; path=/; HttpOnly

X-Cache-KMF: MISS

X-Kong-Upstream-Latency: 188

X-Kong-Proxy-Latency: 1

Via: kong/0.14.1

<!DOCTYPE html>

<html>... 省略html内容 ...</html>

4.安装dashboard

1) konga 安装 github: https://github.com/pantsel/konga

[root@xxbnz kong-gateway]# docker run -d -p 1337:1337 -e "DB_ADAPTER=postgres" -e "DB_HOST=kong-database" -e "DB_PORT=5432" -e "DB_USER=kong" -e "DB_PASSWORD=kong" -e "DB_DATABASE=kong_dashboard" -e "NODE_ENV=production" --name kong_dashboard pantsel/konga

Unable to find image 'pantsel/konga:latest' locally

latest: Pulling from pantsel/konga

a073c86ecf9e: Pull complete

db7179d8c6cd: Pull complete

66b9cfaecc8c: Pull complete

0dbd11be87d6: Pull complete

38c21bd98093: Pull complete

Digest: sha256:c5553c3ab6121f2c32b1739b280aede9d25f0d10e404b8e90e44899e1931399b

Status: Downloaded newer image for pantsel/konga:latest

08e9c8847ae5d0f440e603b61bd10408c17b704a5c141a78e022f0fbbf8df621

查看安装结果:

[root@xxbnz kong-gateway]# docker ps

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

08e9c8847ae5 pantsel/konga "/app/start.sh" 7 seconds ago Up 5 seconds 0.0.0.0:1337->1337/tcp kong_dashboard

58bee35c5789 kong:latest "/docker-entrypoint.…" 4 days ago Up 4 days 0.0.0.0:7946->7946/tcp, 0.0.0.0:8000->8000/tcp, 0.0.0.0:8003->8003/tcp, 8001/tcp, 0.0.0.0:8443->8443/tcp, 0.0.0.0:7946->7946/udp, 8444/tcp kong

6f3d818e4d1b postgres:9.6 "docker-entrypoint.s…" 4 days ago Up 4 days 0.0.0.0:5432->5432/tcp kong-database

2) pgbi/kong-dashboard 安装 github: https://github.com/PGBI/kong-dashboard

官方提供的安装方法如下:

# Start Kong Dashboard

docker run --rm -p 8080:8080 pgbi/kong-dashboard start --kong-url http://kong:8001

# Start Kong Dashboard on a custom port

docker run --rm -p [port]:8080 pgbi/kong-dashboard start --kong-url http://kong:8001

# Start Kong Dashboard with basic auth

docker run --rm -p 8080:8080 pgbi/kong-dashboard start \

--kong-url http://kong:8001

--basic-auth user1=password1 user2=password2

# See full list of start options

docker run --rm -p 8080:8080 pgbi/kong-dashboard start --help

自己安装折腾了几遍有一些问题:

[root@xxbnz ~]# docker run --rm -p 8082:8082 pgbi/kong-dashboard start --kong-url http://127.0.0.1:8003

响应:

Connecting to Kong on http://127.0.0.1:8003 ...

Could not reach Kong on http://127.0.0.1:8003

Error details:

{ Error: connect ECONNREFUSED 127.0.0.1:8003

at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1161:14)

errno: 'ECONNREFUSED',

code: 'ECONNREFUSED',

syscall: 'connect',

address: '127.0.0.1',

port: 8003 }

解决办法: 参考:https://blog.csdn.net/jiangyu1013/article/details/80810832

https://github.com/PGBI/kong-dashboard/issues/156

1.创建桥接网络

[root@xxbnz ~]# docker network create my-net-kong

44a88f33aefca80e9c0220272a57022dbef26b4819b8fdf7626ffa38f5a18c23

2.将Kong容器添加到它

[root@xxbnz ~]# docker network connect my-net-kong kong

3.运行kong-dashboard时提供网络信息

[root@xxbnz ~]# docker run --rm --network my-net-kong -d -p 8082:8080 pgbi/kong-dashboard start --kong-url http://kong:8003

-d 后台运行 --network共享网络 --kong-url http://kong:8003 这里kong不能改用其他会报错由于我本地端口被占用 kong-dashboard所以换成8082 kong改成8003

查看安装结果:

[root@xxbnz ~]# docker ps -a

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

3c2a1d58b7c4 pgbi/kong-dashboard "./docker/entrypoint…" 12 seconds ago Up 11 seconds 0.0.0.0:8082->8080/tcp reverent_kare

访问: http://xxxx:8082/#!/

至此，一个简单的 kong 网关运行成功。但是正如 kong 官网所描述，它具备很多其他特性，后续将对重要的继续介绍。

最后编辑于：2018.09.26 14:40:43

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Kong Api网关简介(一) 安装运行

Kong 是 Mashape 开源的高性能高可用 API 网关和 API 管理服务层。它基于 OpenResty 进行 API 管理，并提供了插件实现 API 的 AOP。最近因工作的需要研究了 Kong 的相关应用实现。

一.准备

二.启动

三.运行

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