Hello, just started the LFS250, but issues on the first demo video

fmiranda

Hi,
I tried to replicate what was done on Chapter 3 first video, using docker and podman.
Docker works flawless, even with Docker Desktop. When trying to do the same on a different Virtual Machine, I installed podman and also Podman Desktop. The command line:

$ podman run --detach --publish-all nginx:latest 
or
$ podamn run --detach --publish-all nginx:1.20

Return this error:
Error: short-name "nginx:latest" did not resolve to an alias and no unqualified-search registries are defined in "/etc/containers/registries.conf"

I was able to solve the issue with:

podman run --detach --publish-all docker.io/nginx:latest 
Trying to pull docker.io/library/nginx:latest...
Getting image source signatures
Copying blob 943ea0f0c2e4 done   | 
Copying blob 7cf63256a31a done   | 
Copying blob d014f92d532d done   | 
Copying blob 513c3649bb14 done   | 
Copying blob bf9acace214a done   | 
Copying blob 9dd21ad5a4a6 done   | 
Copying blob 103f50cb3e9f done   | 
Copying config b52e0b094b done   | 
Writing manifest to image destination
f5136ce53f384ac4e184cb702c29d024da41f1541f9cef9e051491883308d5a1

fmiranda

On Chapter 3 as well, following the Demo: Building Container Images

This instructions, in the description would have been helpful:

• create a working directory for your application and enter that directorr
  mkdir app1

then

git clone https://github.com/docker/getting-started-app.git
 

• Create your Dockerfile with the following content:

FROM node:lts-alpine
WORKDIR /app
COPY . .
RUN yarn install --production
CMD ["node", "src/index.js"]
EXPOSE 3000

• enter the directory
  getting-started-app

• run the command

podman build -t getting-started2 . -f ../Dockerfile
 

• then run the command below to check your new image
  podman images

• then run the container image:

podman run -d -p 3000:3000 getting-started
 

• Then open your Browser and enter the text below on the URL field:
  localhost:3000

Voilá