搬运工-compose.yml
version: '2'
services:
app:
build:
context: .
command: python src/app.py
restart: on-failure
depends_on:
- db
environment:
- TJBOT_DB_HOST=db
- TJBOT_API_KEY
- TJBOT_AUTO_QUESTION_TIME
env_file:
- .env
db:
image: mongo:3.0.14
volumes:
- mongodbdata:/data/db
volumes:
mongodbdata:
如果我更改.env
文件,我怎样才能重新加载容器以使用新环境变量并减少停机时间?
答案 0 :(得分:51)
如果您使用docker-compose运行yml,则只需运行{
"query": {
"function_score": {
"query": {
"bool": {
"must": {
"match": {
"keywords": {
"query": "trump"
}
}
},
"should": [
{
"match": {
"type": {
"query": "headline"
}
}
}
]
}
},
"functions": [
{
"gauss": {
"versioncreated": {
"origin": "now/d",
"scale": "50w",
"offset": "4w",
"decay": "0.5"
}
}
}
],
"boost": 5,
"score_mode": "sum"
}
}
}
,它将重新创建任何已更改的容器,并保持所有未更改的服务不变。
docker-compose up -d
如果您使用版本3文件格式的$ cat docker-compose.env2.yml
version: '2'
services:
test:
image: busybox
# command: env
command: tail -f /dev/null
environment:
- MY_VAR=hello
- MY_VAR2=world
test2:
image: busybox
command: tail -f /dev/null
environment:
- MY_VAR=same ole same ole
$ docker-compose -f docker-compose.env2.yml up -d
Creating network "test_default" with the default driver
Creating test_test_1
Creating test_test2_1
$ vi docker-compose.env2.yml # edit the file to change MY_VAR
$ docker-compose -f docker-compose.env2.yml up -d
Recreating test_test_1
test_test2_1 is up-to-date
运行容器,则可以对服务进行滚动更新,以防止在运行多个服务实例时出现任何停机。这个功能仍然很新,你希望1.13.1修复一些更新的问题,就像这个新的东西一样,bug仍在制定中。