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Solutions day 3 #10

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20 changes: 10 additions & 10 deletions lesson_3/ex1_solution.md
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- Image Size:
- Container Name:
- Container ID:
- Exposed port:
- Postgres version:
- Data Volume (aka PGDATA):
- default entrypoint:
- default command:
- baseline consumption : CPU ___% MEM ___MB
- OS: Distro Version Codename (Ubuntu 22.04 jammy)
- Image Size: 377MB
- Container Name: trusting_murdock
- Container ID: 3c8d719dfb2d
- Exposed port: 5432/tcp
- Postgres version: ???????
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@hectorcanto hectorcanto Nov 8, 2022

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podes conseguilo de varios xeitos.

  • A través de postgres, entras no container e lanzas postgres -V
  • inspeccionando: docker inspect trusting_murdock | grep PG

- Data Volume (aka PGDATA): "/var/lib/postgresql/data"
- default entrypoint: docker-entrypoint.sh
- default command: "/bin/sh","-c","#(nop) ","CMD [\"postgres\"]"
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@hectorcanto hectorcanto Nov 8, 2022

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Suficiente con postgres. O que puxeches é a liña da historia completa

- baseline consumption : CPU 0.0% MEM 30.21MB
- OS: Distro Version Codename (Ubuntu 22.04 jammy)?????
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@hectorcanto hectorcanto Nov 8, 2022

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Necesitas entrar no contedor e mirar algo como:

  • cat /etc/lsb-release
  • cat /etc/os-release
  • cat /etc/issue

Cal é a boa dependerá da distro. como opción xeral: cat /etc/*elease*, esta caza case todas

6 changes: 5 additions & 1 deletion lesson_3/ex1_solution.sh
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docker pull
docker run -e POSTGRES_PASSWORD=1234 postgres:latest
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@hectorcanto hectorcanto Nov 8, 2022

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Moi recomendable nomear o contedor. En contedores coma este, que siguen vivos despois de lanzalos, o recomendable é lanzalos en modo "detached" e interactivo: docker run -itd ...

docker ps
docker image ls
docker inspect postgres:latest
docker container stats
7 changes: 5 additions & 2 deletions lesson_3/ex2_solution.md
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REPOSITORY TAG IMAGE ID CREATED SIZE
nginx
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx 1.22.1-perl df1998569adb 9 days ago 188MB
nginx 1.22.1 0ccb2559380c 9 days ago 142MB
nginx 1.22.1-alpine-perl 98f7c1f8a3fa 2 weeks ago 58.6MB
nginx 1.22.1-alpine ec84f916d1ec 2 weeks ago 23.6MB
5 changes: 4 additions & 1 deletion lesson_3/ex2_solution.sh
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docker pull
docker pull nginx:1.22.1-perl
docker pull nginx:1.22.1-alpine-perl
docker pull nginx:1.22.1-alpine
docker pull nginx:1.22.1