Change base image from CentOS 7 to alpine linux

This commit is contained in:
Juan Luis Baptiste 2020-03-22 23:17:24 -05:00
parent 7099763cec
commit 9fd2173200
4 changed files with 10 additions and 10 deletions

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@ -1,14 +1,13 @@
#Dockerfile for a Postfix email relay service
FROM centos:7
FROM alpine
MAINTAINER Juan Luis Baptiste juan.baptiste@gmail.com
RUN yum install -y epel-release && yum update -y && \
yum install -y cyrus-sasl cyrus-sasl-plain cyrus-sasl-md5 mailx \
RUN apk update && \
apk add bash gawk cyrus-sasl cyrus-sasl-plain cyrus-sasl-crammd5 mailx \
perl supervisor postfix rsyslog \
&& rm -rf /var/cache/yum/* \
&& yum clean all
RUN sed -i -e "s/^nodaemon=false/nodaemon=true/" /etc/supervisord.conf
RUN sed -i -e 's/inet_interfaces = localhost/inet_interfaces = all/g' /etc/postfix/main.cf
rm -rf /var/cache/apk/* && \
mkdir -p /var/log/supervisor/ /var/run/supervisor/ && \
sed -i -e 's/inet_interfaces = localhost/inet_interfaces = all/g' /etc/postfix/main.cf
COPY etc/ /etc/
COPY run.sh /

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@ -1,6 +1,7 @@
version: '2'
services:
postfix:
image: juanluisbaptiste/postfix:dev
build:
context: .
dockerfile: Dockerfile

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@ -22,7 +22,7 @@ nodaemon=true ; (start in foreground if true;default false)
minfds=1024 ; (min. avail startup file descriptors;default 1024)
minprocs=200 ; (min. avail process descriptors;default 200)
;umask=022 ; (process file creation umask;default 022)
;user=chrism ; (default is current user, required if root)
user=root ; (default is current user, required if root)
;identifier=supervisor ; (supervisord identifier, default is 'supervisor')
;directory=/tmp ; (default is not to cd during start)
;nocleanup=true ; (don't clean up tempfiles at start;default false)

4
run.sh
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@ -44,7 +44,7 @@ if [ ! -f /etc/postfix/sasl_passwd ]; then
fi
fi
#Set header tag
#Set header tag
if [ ! -z "${SMTP_HEADER_TAG}" ]; then
postconf -e "header_checks = regexp:/etc/postfix/header_tag"
echo -e "/^MIME-Version:/i PREPEND RelayTag: $SMTP_HEADER_TAG\n/^Content-Transfer-Encoding:/i PREPEND RelayTag: $SMTP_HEADER_TAG" > /etc/postfix/header_tag
@ -70,4 +70,4 @@ add_config_value "mynetworks" "${nets}"
# starting services
rm -f /var/spool/postfix/pid/master.pid
exec supervisord
exec supervisord -c /etc/supervisord.conf