我正在努力使用docker-compose传递ENV变量
我有一个FROM alpine:latest
ENV ftp_ip 127.0.0.1
ENV mongo_ip 127.0.0.1
ENV quorum_ip http://localhost:22000
RUN apk add --update openjdk8 && mkdir /var/backend/
RUN apk update
COPY license-system-0.0.1-SNAPSHOT.jar /var/backend/
EXPOSE 8080
ENTRYPOINT [ "java", "-jar", "-Dspring.quorum.host=${quorum_ip}", "-Dspring.ftp.server=${ftp_ip}", "-Dspring.data.mongodb.host=${mongo_ip}","/var/backend/license-system-0.0.1-SNAPSHOT.jar" ]
用Java应用程序来构建容器:
version: "3"
services:
backend:
network_mode: host
build: backend
ports:
- "8080:8080"
environment:
- mongo_ip=${mongo_ip}
- ftp_ip=${ftp_ip}
- quorum_ip=${quorum_ip}
然后,泊坞窗组成文件:
quorum_ip="$1" mongo_ip="$2" ftp_ip="$3" docker-compose up -d --build
最后,容器通过bash命令启动:
docker inspect
但是 "Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"ftp_ip=127.0.0.1",
"mongo_ip=127.0.0.1",
"quorum_ip=http://localhost:22000"
],
"Cmd": null,
"ArgsEscaped": true,
"Image": "sha256:3ce51f52d70127f22462eafdb60321a4e477a4bec5aa092e860b8485e8575c26",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": [
"java",
"-jar",
"-Dspring.quorum.host=${quorum_ip}",
"-Dspring.ftp.server=${ftp_ip}",
"-Dspring.data.mongodb.host=${mongo_ip}",
"/var/backend/license-system-0.0.1-SNAPSHOT.jar"
]
并没有什么希望。变量设置不正确(它们使用的是dockerfile中的默认值),并且参数arent甚至更改为默认值...
m <- load_model_hdf5("www//ae_model.h5").
我想念什么吗?还是我做错了什么?
答案 0 :(得分:1)
如果要在入口点使用environmnet变量,则应使用“ shell形式”而不是“ exec形式”。
ENTRYPOINT java -jar -Dspring.quorum.host=${quorum_ip} -Dspring.ftp.server=${ftp_ip} -Dspring.data.mongodb.host=${mongo_ip} /var/backend/license-system-0.0.1-SNAPSHOT.jar
您可能可以使其与“ exec表单”一起使用,但只会使语法复杂化。
答案 1 :(得分:-1)
您必须使用build args而不是env来从Dockerfile构建映像
Dockerfile
FROM alpine:latest
ARG ftp_ip
ARG mongo_ip
ARG quorum_ip
RUN apk add --update openjdk8 && mkdir /var/backend/
RUN apk update
COPY license-system-0.0.1-SNAPSHOT.jar /var/backend/
EXPOSE 8080
ENTRYPOINT [ "java", "-jar", "-Dspring.quorum.host="${quorum_ip}, "-Dspring.ftp.server="${ftp_ip}, "-Dspring.data.mongodb.host="${mongo_ip},"/var/backend/license-system-0.0.1-SNAPSHOT.jar" ]
docker-compose
version: "3"
services:
backend:
network_mode: host
build:
context: .
dockerfile: ./path/to/backend/Dockerfile
args:
- mongo_ip=${mongo_ip}
- ftp_ip=${ftp_ip}
- quorum_ip=${quorum_ip}
ports:
- "8080:8080"
.env(传递env以在docker-compose中使用。docker-compose自动从.env文件中获取env)(如果存在)
ftp_ip=127.0.0.1
mongo_ip=127.0.0.1
quorum_ip=http://localhost:22000
然后运行docker-compose build以使用正确的envs构建映像