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Docker Images Best Practices

Avatar for Boris Quiroz Boris Quiroz
July 08, 2016
Technology
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Docker Images Best Practices

We talked about the best practices when working with docker images
Avatar for Boris Quiroz

Boris Quiroz

July 08, 2016
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Transcript

  1. Docker Images Best Practices Boris Quiroz - Geek Lunch 0x0

  2. Docker: - Build once, run anywhere - Configure once, run

    anything

  3. Containers son a las VMs lo que los threads son

    a los procesos. Powerful chroot.

  4. bootfs (lxc, btrfs) rootfs (ubuntu) Imagen

  5. bootfs (lxc, btrfs) rootfs (ubuntu) Imagen Container (rw)

  6. Buenas prácticas Usar cache: FROM alpine:edge Usar tags: docker build

    -t boris/parrots . Exponer puertos: EXPOSE 1313 CMD || ENTRYPOINT: ENTRYPOINT ["/root/terminal-parrot/parrot"]
  7. None
  8. None

  9. Size

  10. Imagenes grandes se demoran más en bajar. Imágenes grandes usan

    más espacio. Componentes innecesarios aumentan el tamaño. En debian: --no-install-recommends y rm -rf /var/lib/apt/lists/* En Alpine: rm -rf /var/cache/apk/* Busybox Alpine Node PHP Ubuntu 6.1 5.9 1:21 50.3 23.9 Busybox Alpine Node PHP Ubuntu 1.093 MB 4.799 MB 660.7 MB 490.3 MB 132.8 MB

  11. Demo