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Respuestas problemas 1 y 2 #5

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65a2342
Update ex1_solution.sh
pasanchez Nov 3, 2022
e4d4c78
Update ex1_solution.md
pasanchez Nov 3, 2022
5467141
Update ex2_solution.md
pasanchez Nov 3, 2022
65ce479
Update ex2_solution.md
pasanchez Nov 3, 2022
c5fe411
Update ex2_solution.sh
pasanchez Nov 3, 2022
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Update ex2_solution.sh
pasanchez Nov 3, 2022
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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: festive_heisenberg
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@hectorcanto hectorcanto Nov 6, 2022

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recoméndoche nomear os containers

- Container ID: a09e501aa7d9
- Exposed port: 5432
- Postgres version: 15.0
- 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 6, 2022

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ok, é suficient con postgres, o resto é cacharrería interna de docker (agás o CMD)

- baseline consumption : CPU 0.00% MEM 940KiB
- OS: Debian 15.0-1.pgdg110+1
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@hectorcanto hectorcanto Nov 6, 2022

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o sistema operativo é Debian 11, pódese mirar dentro do container con more /etc/issue/

16 changes: 15 additions & 1 deletion lesson_3/ex1_solution.sh
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docker pull
docker pull postgres:latest
docker image ls postgres
docker run -it -e POSTGRES_HOST_AUTH_METHOD=trust --entrypoint /bin/bash postgres
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@hectorcanto hectorcanto Nov 6, 2022

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o entrypoint aquí non impide lanzar un comando así que podes entrar con /bin/bash (non se lanzará o postgres pero non nos importa), ou lanzar e entrar despois con docker exec -it container_name /bin/bash


docker ps
docker image inspect postgres:latest

#Dentro del contenedor:
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@hectorcanto hectorcanto Nov 6, 2022

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gracias polas aclaracións, queda máis lexible


postgres --version

# Para ver los recursos

docker container stats festive_heisenberg

10 changes: 8 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 0ccb2559380c 9 days ago 142MB

nginx 1.22.1 0ccb2559380c 9 days ago 142MB

nginx stable 0ccb2559380c 9 days ago 142MB

5 changes: 4 additions & 1 deletion lesson_3/ex2_solution.sh
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docker pull
docker image pull nginx:1.22.1
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@hectorcanto hectorcanto Nov 6, 2022

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Baixaches a mesma imaxe 3 veces. Fíxate na IMAGE ID

En cada liña viñan varios tags para a mesma imaxe, pero cada liña é diferent
Terías que ter collido 1 por cada liña para obter a normal, perl, alpine e alpine perl
Proba outra vez se queres.

docker image pull nginx:stable
docker image pull nginx:1.22
docker image ls nginx