我正在处理的项目:
使用nginx-openresty、memcached和docker-compose。
我能够通过在nginx中指定resolver = 127.0.0.11来连接memcached容器,在docker-compose中它能够正常工作。
但是,当我将其部署到AWS多容器beanstalk上时,我遇到了超时错误。
failed to connect: memcache could not be resolved (110: Operation timed out)
但是通过nginx容器,我可以ping通memcached。
NGINX.conf
location /health-check {
resolver 127.0.0.11 ipv6=off;
access_by_lua_block {
local memcached = require "resty.memcached"
local memc, err = memcached:new()
if not memc then
ngx.say("failed to instantiate memc: ", err)
return
end
memc: set_timeout(1000) -- 1 sec
local ok, err = memc:connect("memcache", 11211)
if not ok then
ngx.say("failed to connect: ", err)
return
end
DOCKER-COMPOSE.YML
version: "3"
services:
memcache:
image: memcached:alpine
container_name: memcached
ports:
- "11211:11211"
expose:
- "11211"
networks:
- default
nginx:
image: openresty/openresty:alpine
container_name: nginx
volumes:
# Nginx files
- ./nginx/:/etc/nginx/:ro
# Web files
- ./web/:/var/www/web/:ro
entrypoint: openresty -c /etc/nginx/nginx.conf
ports:
- "8080:8080"
networks:
- default
DOCKERRUN.AWS.JSON
{
"AWSEBDockerrunVersion": 2,
"volumes": [
{
"name": "current-nginx",
"host": {
"sourcePath": "/var/app/current/nginx"
}
},
{
"name": "web",
"host": {
"sourcePath": "/var/www/web/"
}
}
],
"containerDefinitions": [
{
"name": "memcache",
"image": "memcached:alpine",
"essential": true,
"memory": 1000,
"portMappings": [
{
"hostPort": 11211,
"containerPort": 11211
}
]
},
{
"name": "nginx",
"image": "openresty/openresty:alpine",
"essential": true,
"memory": 1000,
"entryPoint": [
"openresty",
"-c",
"/etc/nginx/nginx.conf"
],
"links": [
"memcache"
],
"portMappings": [
{
"hostPort": 8080,
"containerPort": 8080
},
{
"hostPort": 80,
"containerPort": 8080
}
],
"mountPoints": [
{
"sourceVolume": "web",
"containerPath": "/var/www/web/",
"readOnly": false
},
{
"sourceVolume": "current-nginx",
"containerPath": "/etc/nginx",
"readOnly": false
}
]
}
]
}