add variable value to github action name - github

Question

How do I create a github workflow step name with a variable value.
I tried this but it does not work.
name: Publish
on:
push:
branches:
- main
env:
REGISTRY: ghcr.io
jobs:
Publish:
runs-on: ubuntu-latest
steps:
- name: Log into Container registry ${{ env.REGISTRY }}

Answer 1

I know you tried it, but reproducing the workflow here with your implementation (as below) actually worked for me.
name: Publish
on:
push:
env:
REGISTRY: ghcr.io
jobs:
Publish:
runs-on: ubuntu-latest
steps:
- name: Log into Container registry ${{ env.REGISTRY }}
run: echo "Ok"
The job step name was generated dynamically according to the workflow env variable set.
Here is the workflow run

Answer 2

Since this does not seem supported, it is better to add an echo which prints the variable, before one processing it:
name: Publish
on:
push:
branches:
- main
env:
REGISTRY: ghcr.io
jobs:
Publish:
runs-on: ubuntu-latest
steps:
- name: Log into Container registry
run: echo "registry is '$REGISTRY'"
After that, for runtime variables, you can add conditions:
on:
push:
branches:
- actions-test-branch
jobs:
Echo-On-Commit:
runs-on: ubuntu-latest
steps:
- name: "Checkout Repository"
uses: actions/checkout#v2
- name: "Set flag from Commit"
env:
COMMIT_VAR: ${{ contains(github.event.head_commit.message, '[commit var]') }}
run: |
if ${COMMIT_VAR} == true; then
echo "flag=true" >> $GITHUB_ENV
echo "flag set to true"
else
echo "flag=false" >> $GITHUB_ENV
echo "flag set to false"
fi
- name: "Use flag if true"
if: env.flag
run: echo "Flag is available and true"