[Bug] Write in postfix the environment smtp and port

[rudnypc]

Hi,

I try to set the RELAYHOST and SMTPPORT, but the main.cf is the same without the values.

[austinsonger]

@rudnypc Again please fill out the bug template completely. Also if you state something like

the main.cf is the same without the values.

and not show us that file, then it just requires more and back and forth.

[rudnypc]

Describe the bug I try to set the RELAYHOST and SMTPPORT in the environment, I open the /etc/postfix/main.cf and I didn't see any changes

I try to execute the 25 line, but the scripts doesn't work: https://github.com/Secure-Compliance-Solutions-LLC/GVM-Docker/blob/master/scripts/entrypoint.sh

To Reproduce Steps to reproduce the behavior:

1. Deploy the gvm with RELAYHOST and SMTPPORT environments
2. open /etc/postfix/main.cf and check if it has any change.

Expected behavior I would like to write my personal smtp server in that file.

Screenshots If applicable, add screenshots to help explain your problem.

Host Device:

• OS: Ubuntu
• Version:20.04

Image in use:

• Self build? No
• Output from docker image inspect <image> :

  
  root@SRV-SWARM-INFRA:~# docker image inspect securecompliance/gvm:latest-data-full@sha256:ae8ac631f48ebb825c1135d513d3bd059f0b6ba4d2a346b587d3da9f1b888e7e
  [
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      "RepoTags": [],
      "RepoDigests": [
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      "Comment": "buildkit.dockerfile.v0",
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          "AttachStderr": false,
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              "8081/tcp": {},
              "9392/tcp": {}
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          "Tty": false,
          "OpenStdin": false,
          "StdinOnce": false,
          "Env": [
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              "SUPVISD=supervisorctl",
              "USERNAME=admin",
              "PASSWORD=adminpassword",
              "PASSWORD_FILE=none",
              "TIMEOUT=15",
              "DEBUG=N",
              "RELAYHOST=smtp",
              "SMTPPORT=25",
              "AUTO_SYNC=true",
              "HTTPS=true",
              "CERTIFICATE=none",
              "CERTIFICATE_KEY=none",
              "TZ=Etc/UTC",
              "SSHD=false",
              "DB_PASSWORD=none",
              "DB_PASSWORD_FILE=none",
              "LANG=en_US.UTF-8",
              "LANGUAGE=en_US.UTF-8",
              "LC_ALL=en_US.UTF-8",
              "MUSL_LOCPATH=/usr/share/i18n/locales/musl",
              "SETUP=0",
              "OPT_PDF=1"
          ],
          "Cmd": [
              "/usr/bin/supervisord",
              "-n",
              "-c",
              "/etc/supervisord.conf"
          ],
          "ArgsEscaped": true,
          "Image": "",
          "Volumes": {
              "/etc/ssh": {},
              "/opt/database": {},
              "/var/lib/gvm": {},
              "/var/lib/openvas/plugins": {}
          },
          "WorkingDir": "",
          "Entrypoint": [
              "/entrypoint.sh"
          ],
          "OnBuild": null,
          "Labels": {
              "org.opencontainers.image.created": "2021-08-08T20:40:19.640Z",
              "org.opencontainers.image.description": "Greenbone Vulnerability Management Docker Image with OpenVAS",
              "org.opencontainers.image.licenses": "MIT",
              "org.opencontainers.image.revision": "45166f1b9bc1c5314303b99ee1a94bb7552bc153",
              "org.opencontainers.image.source": "https://github.com/Secure-Compliance-Solutions-LLC/GVM-Docker",
              "org.opencontainers.image.title": "GVM-Docker",
              "org.opencontainers.image.url": "https://github.com/Secure-Compliance-Solutions-LLC/GVM-Docker",
              "org.opencontainers.image.version": "21.4.3-v1-data-full"
          }
      },
      "Architecture": "amd64",
      "Os": "linux",
      "Size": 4297891289,
      "VirtualSize": 4297891289,
      "GraphDriver": {
          "Data": {
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              "MergedDir": "/var/lib/docker/overlay2/4a3c4a0253c198b2cb1edf59b802ebcedabd9b7a2515beaaf7e535ef70fa285f/merged",
              "UpperDir": "/var/lib/docker/overlay2/4a3c4a0253c198b2cb1edf59b802ebcedabd9b7a2515beaaf7e535ef70fa285f/diff",
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**Additional context**