Gradle 如何在Docker映像中安装grails?
我正在对一个基于grails构建的现有应用程序进行容器化。我已经能够在Gradle 如何在Docker映像中安装grails?,gradle,grails,Gradle,Grails,我正在对一个基于grails构建的现有应用程序进行容器化。我已经能够在debian:stretch映像中成功地构建这个项目(是的,我知道这很旧,但是这个项目最初是用几乎所有东西的旧版本构建的),安装了gradle,maven,和默认jdk。但是我不确定这是否意味着我不需要grails。当我在容器内的命令行提示符下尝试grails--version时,它会显示“bash:grails:command not found” 对于grails,似乎没有一个单独的包,我可以使用apt安装它,而且所有的参
debian:stretch
映像中成功地构建这个项目(是的,我知道这很旧,但是这个项目最初是用几乎所有东西的旧版本构建的),安装了gradle
,maven
,和默认jdk
。但是我不确定这是否意味着我不需要grails。当我在容器内的命令行提示符下尝试grails--version
时,它会显示“bash:grails:command not found”
对于grails
,似乎没有一个单独的包,我可以使用apt
安装它,而且所有的参考文献似乎都说要通过sdkman
安装grails
我对grails或groovy一点也不熟悉,所以我不确定如何继续。关于如何安装(或者验证安装?)grails有什么建议吗?如果需要,没有它,构建是如何成功的?这是我们在环境中使用的: docker compose.yml
version: '3.7'
services:
db:
image: postgres:12.3
environment:
- POSTGRES_DB=databasename
- POSTGRES_USER=postgres
- POSTGRES_PASSWORD=postgres
ports:
- 5432:5432
networks:
- mynetwork
backend:
build:
context: .
target: development
ports:
- 8080:8080
- 8083:8443
- 5006:5005
environment:
- DB_HOST=db
- DB_NAME=databasename
- DB_PORT=5432
- DB_USERNAME=postgres
- DB_PASSWORD=postgres
volumes:
- grails-volume:/root/.m2
- grails-volume:/root/.gradle
- grails-volume:/root/.grails
- ./grails-app:/app/grails-app
- ./src:/app/src
- ./version.txt:/version.txt
entrypoint: ["sh", "-c", "./wait-for-it.sh db:5432 -t 30 -- grails run-app"]
command: [""]
depends_on:
- db
networks:
- mynetwork
volumes:
grails-volume:
networks:
mynetwork:
#...Omitted code...
environments:
development:
dataSource:
driverClassName: org.postgresql.Driver
dialect: org.hibernate.dialect.PostgreSQLDialect
# dbCreate: create-drop
dbCreate: update
url: jdbc:postgresql://${DB_HOST}:${DB_PORT}/${DB_NAME}
test:
dataSource:
dbCreate: update
url: jdbc:h2:mem:testDb;MVCC=TRUE;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE
production:
dataSource:
driverClassName: org.postgresql.Driver
dialect: org.hibernate.dialect.PostgreSQLDialect
dbCreate: update
url: jdbc:postgresql://${DB_HOST}:${DB_PORT}/${DB_NAME}
Dockerfile:
# Image to start project and initialize dependencies.
FROM openjdk:8 AS initializer
ENV GRAILS_VERSION 4.0.3
# Install Grails
WORKDIR /usr/lib/jvm
RUN ls -l
RUN wget https://github.com/grails/grails-core/releases/download/v$GRAILS_VERSION/grails-$GRAILS_VERSION.zip && \
unzip grails-$GRAILS_VERSION.zip && \
rm -rf grails-$GRAILS_VERSION.zip && \
ln -s grails-$GRAILS_VERSION grails
# Setup Grails path.
ENV GRAILS_HOME /usr/lib/jvm/grails
ENV PATH $GRAILS_HOME/bin:$PATH
ENV GRADLE_USER_HOME /app/.gradle
# Create minimal structure to trigger grails build with specified profile.
RUN mkdir /app \
&& mkdir /app/grails-app \
&& mkdir /app/grails-app/conf \
&& echo "grails.profile: rest-api" > /app/grails-app/conf/application.yml
# Set Workdir
WORKDIR /app
# Copy minimun files to trigger grails download of wrapper and dependencies.
COPY gradle.properties build.gradle /app/
# Trigger gradle build
RUN [ "grails", "stats" ]
# Implemented to improve cache in CI
FROM initializer as development
# Add wait-for-it ro wait for database
COPY wait-for-it.sh .
RUN ["chmod", "+x", "./wait-for-it.sh"]
# Copy source code
COPY grails-app /app/grails-app
COPY src /app/src
# Set Default Behavior
ENTRYPOINT ["./wait-for-it.sh", "db:5432", "-t", "30", "--", "grails", "run-app", "--debug-jvm"]
CMD [ "" ]
# Image used to build prod war
FROM development AS builder
# Build project
RUN [ "grails", "prod", "war" ]
RUN ls -l /app/build/libs
# Production image
FROM openjdk:8-jdk AS production
# Set correct timezone
ENV TZ=America/Argentina/Cordoba
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
# Add wait-for-it ro wait for database
COPY wait-for-it.sh .
RUN ["chmod", "+x", "/wait-for-it.sh"]
# Copy war inside container
COPY --from=builder /app/build/libs/app-*.war app.war
# Expose default port
EXPOSE 8080
# Wait for database to be available
ENTRYPOINT ["/wait-for-it.sh", "db-service:5432", "-t", "30", "--"]
# War runs directly. (Uses urandom as entropy source for faster startup time)
CMD ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.war"]
#!/usr/bin/env bash
# Use this script to test if a given TCP host/port are available
WAITFORIT_cmdname=${0##*/}
echoerr() { if [[ $WAITFORIT_QUIET -ne 1 ]]; then echo "$@" 1>&2; fi }
usage()
{
cat << USAGE >&2
Usage:
$WAITFORIT_cmdname host:port [-s] [-t timeout] [-- command args]
-h HOST | --host=HOST Host or IP under test
-p PORT | --port=PORT TCP port under test
Alternatively, you specify the host and port as host:port
-s | --strict Only execute subcommand if the test succeeds
-q | --quiet Don't output any status messages
-t TIMEOUT | --timeout=TIMEOUT
Timeout in seconds, zero for no timeout
-- COMMAND ARGS Execute command with args after the test finishes
USAGE
exit 1
}
wait_for()
{
if [[ $WAITFORIT_TIMEOUT -gt 0 ]]; then
echoerr "$WAITFORIT_cmdname: waiting $WAITFORIT_TIMEOUT seconds for $WAITFORIT_HOST:$WAITFORIT_PORT"
else
echoerr "$WAITFORIT_cmdname: waiting for $WAITFORIT_HOST:$WAITFORIT_PORT without a timeout"
fi
WAITFORIT_start_ts=$(date +%s)
while :
do
if [[ $WAITFORIT_ISBUSY -eq 1 ]]; then
nc -z $WAITFORIT_HOST $WAITFORIT_PORT
WAITFORIT_result=$?
else
(echo > /dev/tcp/$WAITFORIT_HOST/$WAITFORIT_PORT) >/dev/null 2>&1
WAITFORIT_result=$?
fi
if [[ $WAITFORIT_result -eq 0 ]]; then
WAITFORIT_end_ts=$(date +%s)
echoerr "$WAITFORIT_cmdname: $WAITFORIT_HOST:$WAITFORIT_PORT is available after $((WAITFORIT_end_ts - WAITFORIT_start_ts)) seconds"
break
fi
sleep 1
done
return $WAITFORIT_result
}
wait_for_wrapper()
{
# In order to support SIGINT during timeout: http://unix.stackexchange.com/a/57692
if [[ $WAITFORIT_QUIET -eq 1 ]]; then
timeout $WAITFORIT_BUSYTIMEFLAG $WAITFORIT_TIMEOUT $0 --quiet --child --host=$WAITFORIT_HOST --port=$WAITFORIT_PORT --timeout=$WAITFORIT_TIMEOUT &
else
timeout $WAITFORIT_BUSYTIMEFLAG $WAITFORIT_TIMEOUT $0 --child --host=$WAITFORIT_HOST --port=$WAITFORIT_PORT --timeout=$WAITFORIT_TIMEOUT &
fi
WAITFORIT_PID=$!
trap "kill -INT -$WAITFORIT_PID" INT
wait $WAITFORIT_PID
WAITFORIT_RESULT=$?
if [[ $WAITFORIT_RESULT -ne 0 ]]; then
echoerr "$WAITFORIT_cmdname: timeout occurred after waiting $WAITFORIT_TIMEOUT seconds for $WAITFORIT_HOST:$WAITFORIT_PORT"
fi
return $WAITFORIT_RESULT
}
# process arguments
while [[ $# -gt 0 ]]
do
case "$1" in
*:* )
WAITFORIT_hostport=(${1//:/ })
WAITFORIT_HOST=${WAITFORIT_hostport[0]}
WAITFORIT_PORT=${WAITFORIT_hostport[1]}
shift 1
;;
--child)
WAITFORIT_CHILD=1
shift 1
;;
-q | --quiet)
WAITFORIT_QUIET=1
shift 1
;;
-s | --strict)
WAITFORIT_STRICT=1
shift 1
;;
-h)
WAITFORIT_HOST="$2"
if [[ $WAITFORIT_HOST == "" ]]; then break; fi
shift 2
;;
--host=*)
WAITFORIT_HOST="${1#*=}"
shift 1
;;
-p)
WAITFORIT_PORT="$2"
if [[ $WAITFORIT_PORT == "" ]]; then break; fi
shift 2
;;
--port=*)
WAITFORIT_PORT="${1#*=}"
shift 1
;;
-t)
WAITFORIT_TIMEOUT="$2"
if [[ $WAITFORIT_TIMEOUT == "" ]]; then break; fi
shift 2
;;
--timeout=*)
WAITFORIT_TIMEOUT="${1#*=}"
shift 1
;;
--)
shift
WAITFORIT_CLI=("$@")
break
;;
--help)
usage
;;
*)
echoerr "Unknown argument: $1"
usage
;;
esac
done
if [[ "$WAITFORIT_HOST" == "" || "$WAITFORIT_PORT" == "" ]]; then
echoerr "Error: you need to provide a host and port to test."
usage
fi
WAITFORIT_TIMEOUT=${WAITFORIT_TIMEOUT:-15}
WAITFORIT_STRICT=${WAITFORIT_STRICT:-0}
WAITFORIT_CHILD=${WAITFORIT_CHILD:-0}
WAITFORIT_QUIET=${WAITFORIT_QUIET:-0}
# check to see if timeout is from busybox?
WAITFORIT_TIMEOUT_PATH=$(type -p timeout)
WAITFORIT_TIMEOUT_PATH=$(realpath $WAITFORIT_TIMEOUT_PATH 2>/dev/null || readlink -f $WAITFORIT_TIMEOUT_PATH)
if [[ $WAITFORIT_TIMEOUT_PATH =~ "busybox" ]]; then
WAITFORIT_ISBUSY=1
WAITFORIT_BUSYTIMEFLAG="-t"
else
WAITFORIT_ISBUSY=0
WAITFORIT_BUSYTIMEFLAG=""
fi
if [[ $WAITFORIT_CHILD -gt 0 ]]; then
wait_for
WAITFORIT_RESULT=$?
exit $WAITFORIT_RESULT
else
if [[ $WAITFORIT_TIMEOUT -gt 0 ]]; then
wait_for_wrapper
WAITFORIT_RESULT=$?
else
wait_for
WAITFORIT_RESULT=$?
fi
fi
if [[ $WAITFORIT_CLI != "" ]]; then
if [[ $WAITFORIT_RESULT -ne 0 && $WAITFORIT_STRICT -eq 1 ]]; then
echoerr "$WAITFORIT_cmdname: strict mode, refusing to execute subprocess"
exit $WAITFORIT_RESULT
fi
exec "${WAITFORIT_CLI[@]}"
else
exit $WAITFORIT_RESULT
fi
等待它。sh:
# Image to start project and initialize dependencies.
FROM openjdk:8 AS initializer
ENV GRAILS_VERSION 4.0.3
# Install Grails
WORKDIR /usr/lib/jvm
RUN ls -l
RUN wget https://github.com/grails/grails-core/releases/download/v$GRAILS_VERSION/grails-$GRAILS_VERSION.zip && \
unzip grails-$GRAILS_VERSION.zip && \
rm -rf grails-$GRAILS_VERSION.zip && \
ln -s grails-$GRAILS_VERSION grails
# Setup Grails path.
ENV GRAILS_HOME /usr/lib/jvm/grails
ENV PATH $GRAILS_HOME/bin:$PATH
ENV GRADLE_USER_HOME /app/.gradle
# Create minimal structure to trigger grails build with specified profile.
RUN mkdir /app \
&& mkdir /app/grails-app \
&& mkdir /app/grails-app/conf \
&& echo "grails.profile: rest-api" > /app/grails-app/conf/application.yml
# Set Workdir
WORKDIR /app
# Copy minimun files to trigger grails download of wrapper and dependencies.
COPY gradle.properties build.gradle /app/
# Trigger gradle build
RUN [ "grails", "stats" ]
# Implemented to improve cache in CI
FROM initializer as development
# Add wait-for-it ro wait for database
COPY wait-for-it.sh .
RUN ["chmod", "+x", "./wait-for-it.sh"]
# Copy source code
COPY grails-app /app/grails-app
COPY src /app/src
# Set Default Behavior
ENTRYPOINT ["./wait-for-it.sh", "db:5432", "-t", "30", "--", "grails", "run-app", "--debug-jvm"]
CMD [ "" ]
# Image used to build prod war
FROM development AS builder
# Build project
RUN [ "grails", "prod", "war" ]
RUN ls -l /app/build/libs
# Production image
FROM openjdk:8-jdk AS production
# Set correct timezone
ENV TZ=America/Argentina/Cordoba
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
# Add wait-for-it ro wait for database
COPY wait-for-it.sh .
RUN ["chmod", "+x", "/wait-for-it.sh"]
# Copy war inside container
COPY --from=builder /app/build/libs/app-*.war app.war
# Expose default port
EXPOSE 8080
# Wait for database to be available
ENTRYPOINT ["/wait-for-it.sh", "db-service:5432", "-t", "30", "--"]
# War runs directly. (Uses urandom as entropy source for faster startup time)
CMD ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.war"]
#!/usr/bin/env bash
# Use this script to test if a given TCP host/port are available
WAITFORIT_cmdname=${0##*/}
echoerr() { if [[ $WAITFORIT_QUIET -ne 1 ]]; then echo "$@" 1>&2; fi }
usage()
{
cat << USAGE >&2
Usage:
$WAITFORIT_cmdname host:port [-s] [-t timeout] [-- command args]
-h HOST | --host=HOST Host or IP under test
-p PORT | --port=PORT TCP port under test
Alternatively, you specify the host and port as host:port
-s | --strict Only execute subcommand if the test succeeds
-q | --quiet Don't output any status messages
-t TIMEOUT | --timeout=TIMEOUT
Timeout in seconds, zero for no timeout
-- COMMAND ARGS Execute command with args after the test finishes
USAGE
exit 1
}
wait_for()
{
if [[ $WAITFORIT_TIMEOUT -gt 0 ]]; then
echoerr "$WAITFORIT_cmdname: waiting $WAITFORIT_TIMEOUT seconds for $WAITFORIT_HOST:$WAITFORIT_PORT"
else
echoerr "$WAITFORIT_cmdname: waiting for $WAITFORIT_HOST:$WAITFORIT_PORT without a timeout"
fi
WAITFORIT_start_ts=$(date +%s)
while :
do
if [[ $WAITFORIT_ISBUSY -eq 1 ]]; then
nc -z $WAITFORIT_HOST $WAITFORIT_PORT
WAITFORIT_result=$?
else
(echo > /dev/tcp/$WAITFORIT_HOST/$WAITFORIT_PORT) >/dev/null 2>&1
WAITFORIT_result=$?
fi
if [[ $WAITFORIT_result -eq 0 ]]; then
WAITFORIT_end_ts=$(date +%s)
echoerr "$WAITFORIT_cmdname: $WAITFORIT_HOST:$WAITFORIT_PORT is available after $((WAITFORIT_end_ts - WAITFORIT_start_ts)) seconds"
break
fi
sleep 1
done
return $WAITFORIT_result
}
wait_for_wrapper()
{
# In order to support SIGINT during timeout: http://unix.stackexchange.com/a/57692
if [[ $WAITFORIT_QUIET -eq 1 ]]; then
timeout $WAITFORIT_BUSYTIMEFLAG $WAITFORIT_TIMEOUT $0 --quiet --child --host=$WAITFORIT_HOST --port=$WAITFORIT_PORT --timeout=$WAITFORIT_TIMEOUT &
else
timeout $WAITFORIT_BUSYTIMEFLAG $WAITFORIT_TIMEOUT $0 --child --host=$WAITFORIT_HOST --port=$WAITFORIT_PORT --timeout=$WAITFORIT_TIMEOUT &
fi
WAITFORIT_PID=$!
trap "kill -INT -$WAITFORIT_PID" INT
wait $WAITFORIT_PID
WAITFORIT_RESULT=$?
if [[ $WAITFORIT_RESULT -ne 0 ]]; then
echoerr "$WAITFORIT_cmdname: timeout occurred after waiting $WAITFORIT_TIMEOUT seconds for $WAITFORIT_HOST:$WAITFORIT_PORT"
fi
return $WAITFORIT_RESULT
}
# process arguments
while [[ $# -gt 0 ]]
do
case "$1" in
*:* )
WAITFORIT_hostport=(${1//:/ })
WAITFORIT_HOST=${WAITFORIT_hostport[0]}
WAITFORIT_PORT=${WAITFORIT_hostport[1]}
shift 1
;;
--child)
WAITFORIT_CHILD=1
shift 1
;;
-q | --quiet)
WAITFORIT_QUIET=1
shift 1
;;
-s | --strict)
WAITFORIT_STRICT=1
shift 1
;;
-h)
WAITFORIT_HOST="$2"
if [[ $WAITFORIT_HOST == "" ]]; then break; fi
shift 2
;;
--host=*)
WAITFORIT_HOST="${1#*=}"
shift 1
;;
-p)
WAITFORIT_PORT="$2"
if [[ $WAITFORIT_PORT == "" ]]; then break; fi
shift 2
;;
--port=*)
WAITFORIT_PORT="${1#*=}"
shift 1
;;
-t)
WAITFORIT_TIMEOUT="$2"
if [[ $WAITFORIT_TIMEOUT == "" ]]; then break; fi
shift 2
;;
--timeout=*)
WAITFORIT_TIMEOUT="${1#*=}"
shift 1
;;
--)
shift
WAITFORIT_CLI=("$@")
break
;;
--help)
usage
;;
*)
echoerr "Unknown argument: $1"
usage
;;
esac
done
if [[ "$WAITFORIT_HOST" == "" || "$WAITFORIT_PORT" == "" ]]; then
echoerr "Error: you need to provide a host and port to test."
usage
fi
WAITFORIT_TIMEOUT=${WAITFORIT_TIMEOUT:-15}
WAITFORIT_STRICT=${WAITFORIT_STRICT:-0}
WAITFORIT_CHILD=${WAITFORIT_CHILD:-0}
WAITFORIT_QUIET=${WAITFORIT_QUIET:-0}
# check to see if timeout is from busybox?
WAITFORIT_TIMEOUT_PATH=$(type -p timeout)
WAITFORIT_TIMEOUT_PATH=$(realpath $WAITFORIT_TIMEOUT_PATH 2>/dev/null || readlink -f $WAITFORIT_TIMEOUT_PATH)
if [[ $WAITFORIT_TIMEOUT_PATH =~ "busybox" ]]; then
WAITFORIT_ISBUSY=1
WAITFORIT_BUSYTIMEFLAG="-t"
else
WAITFORIT_ISBUSY=0
WAITFORIT_BUSYTIMEFLAG=""
fi
if [[ $WAITFORIT_CHILD -gt 0 ]]; then
wait_for
WAITFORIT_RESULT=$?
exit $WAITFORIT_RESULT
else
if [[ $WAITFORIT_TIMEOUT -gt 0 ]]; then
wait_for_wrapper
WAITFORIT_RESULT=$?
else
wait_for
WAITFORIT_RESULT=$?
fi
fi
if [[ $WAITFORIT_CLI != "" ]]; then
if [[ $WAITFORIT_RESULT -ne 0 && $WAITFORIT_STRICT -eq 1 ]]; then
echoerr "$WAITFORIT_cmdname: strict mode, refusing to execute subprocess"
exit $WAITFORIT_RESULT
fi
exec "${WAITFORIT_CLI[@]}"
else
exit $WAITFORIT_RESULT
fi
在开发过程中,您将使用docker compose文件来运行映像(请注意,它有一些卷,以避免在更改应用程序时需要重新启动应用程序):docker compose up-d后端
要为生产生成映像,请执行以下操作:docker build-t yourdockerhubuser/yourproject:versionnumber。
生成Docker映像不需要wait it.sh
文件。但是,为了让grails服务等待几秒钟,直到数据库服务准备好接受连接,这对我们很有用
如果查看Dockerfile,您会注意到它是一个多级文件。这意味着它有几个阶段。第一个是grails工具。最后一个是用于生产的,只有jdk8(可能jre就足够了)。这样,您就不会污染生产图像,从而产生更小的图像。非常有用。多阶段构建正是我试图做的,我可以确认,对于这个项目(它使用所有东西的旧版本)
tomcat:10-jdk8-openjdk-slim
不是太大(312MB),似乎拥有运行.war
文件所需的一切。