Usage of .env; hosts_append in start.sh

.env-example

@@ -0,0 +1,13 @@
+DOMAIN_NAME=bla.domain.tld
+
+SMTP_HOST=mail.domain.tld
+SMTP_PORT=587
+SMTP_FROM=gitea@domain.tld
+SMTP_USER=gitea@domain.tld
+SMTP_PASSWORD=
+SMTP_ENCRYPTION=starttls
+SECRET_KEY=averybigsecretapikey
+
+
+RECIPIENTS_PR='mail@domain.tld','mail2@domain.tld'
+

.gitignore

@@ -0,0 +1 @@
+.env

Dockerfile

@@ -25,7 +25,6 @@ COPY configs/msmtprc /etc/msmtprc
 COPY configs/aliases /etc/aliases
 
 COPY configs/hosts /etc/hosts_append
-RUN cat /etc/hosts_append >> /etc/hosts
 
 COPY start.sh /start.sh
 RUN chmod +x /start.sh

docker-compose.yml

@@ -5,18 +5,18 @@ services:
     build: .
     restart: always
     environment:
-      - SMTP_HOST=
-      - SMTP_PORT=
-      - SMTP_FROM=
-      - SMTP_USER=
-      - SMTP_PASSWORD=
-      - SMTP_ENCRYPTION=
-      - SECRET_KEY=
-      - RECIPIENTS_PR=
-      - DOMAIN_NAME=webhooks.chaospott.de
+      - SMTP_HOST=${SMTP_HOST}
+      - SMTP_PORT=${SMTP_PORT}
+      - SMTP_FROM=${SMTP_FROM}
+      - SMTP_USER=${SMTP_USER}
+      - SMTP_PASSWORD=${SMTP_PASSWORD}
+      - SMTP_ENCRYPTION=${SMTP_ENCRYPTION}
+      - SECRET_KEY=${SECRET_KEY}
+      - RECIPIENTS_PR=${RECIPIENTS_PR}
+      - DOMAIN_NAME=${DOMAIN_NAME}
     labels:
       - traefik.enable=true
-      - traefik.frontend.rule=Host:webhooks.chaospott.de
+      - traefik.frontend.rule=Host:${DOMAIN_NAME}
       - traefik.port=80
       - traefik.docker.network=web
     networks:

start.sh

@@ -24,6 +24,8 @@ sed -i "s/%%SECRETKEY%%/$SECRET_KEY/g;s/%%RECIPIENTS_PR%%/$RECIPIENTS_PR/g;s/%%S
 
 sed -i "s/%%DOMAIN_NAME%%/$DOMAIN_NAME/g" /etc/nginx/nginx.conf
 
+cat /etc/hosts_append >> /etc/hosts
+
 
 chown www:www /var/log/nginx/*
 ln -sf /usr/bin/msmtp /usr/sbin/sendmail