January 2019
Intermediate to advanced
520 pages
14h 32m
English
Content preview from Hands-On Microservices with Rust
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A container with an email server
We need the SMTP server for our mailer service. We use the juanluisbaptiste/postfix image with the Postfix mail server. The server also has to be restarted if it fails and we set the restart policy to always. Look at the following code:
smtp: image: juanluisbaptiste/postfix restart: always environment: - SMTP_SERVER=smtp.example.com - SMTP_USERNAME=admin@example.com - SMTP_PASSWORD=password - SERVER_HOSTNAME=smtp.example.com ports: - "2525:25"
We also configure the server using the environment variables and set the server name, username, password, and a hostname. To test the mail server, we forward port 25 of the mail server to a local 2525 port.
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