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action.yml: add support for workload identity federation #68

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action.yml: add support for workload identity federation #68

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27 changes: 20 additions & 7 deletions action.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,9 @@ inputs:
oauth-secret:
description: "Tailscale OAuth Secret"
required: false
audience:
description: "Audience for JWT"
required: false
policy-file:
description: "Path to policy file"
required: true
Expand All @@ -24,29 +27,39 @@ runs:
using: "composite"
steps:
- name: Check Auth Info Empty
if: ${{ inputs['api-key'] == '' && inputs['oauth-secret'] == '' }}
if: ${{ inputs['api-key'] == '' && inputs['oauth-secret'] == '' && inputs['oauth-client-id'] == ''}}
shell: bash
run: |
echo "::error title=⛔ error hint::API Key or OAuth secret must be specified. Maybe you need to populate it in the Secrets for your workflow, see more in https://docs.github.com/en/actions/security-guides/encrypted-secrets and https://tailscale.com/s/oauth-clients"
echo "::error title=⛔ error hint::API Key, OAuth secret, or OAuth client ID and audience must be specified. Maybe you need to populate it in the Secrets for your workflow, see more in https://docs.github.com/en/actions/security-guides/encrypted-secrets and https://tailscale.com/s/trust-credentials
exit 1
- name: Check Conflicting Auth Info
if: ${{ inputs['api-key'] != '' && inputs['oauth-secret'] != '' }}
if: ${{ (inputs['api-key'] != '' && (inputs['oauth-secret'] != '' || inputs['audience'] != '')) || (inputs['oauth-secret'] != '' && (inputs['api-key'] != '' || inputs['audience'] != '')) || (inputs['audience'] != '' && (inputs['api-key'] != '' || inputs['oauth-secret'] != '')) }}
shell: bash
run: |
echo "::error title=⛔ error hint::only one of API Key or OAuth secret should be specified.
echo "::error title=⛔ error hint::only one of API Key, OAuth secret, or OAuth client ID and audience should be specified."
exit 1
- uses: actions/setup-go@4dc6199c7b1a012772edbd06daecab0f50c9053c # v6.1.0
with:
go-version: 1.25.5
cache: false

- name: Fetch ID token
if: ${{ inputs['oauth-client-id'] != '' && inputs['audience'] != '' }}
shell: bash
id: fetch-id-token
run: |
ID_TOKEN=$(curl -H "Authorization: Bearer $ACTIONS_ID_TOKEN_REQUEST_TOKEN" "${ACTIONS_ID_TOKEN_REQUEST_URL}&audience=${{ inputs.audience }}" | jq -r '.value')
echo "::add-mask::ID_TOKEN"
echo "id_token=$ID_TOKEN" >> $GITHUB_OUTPUT
- name: Gitops pusher
shell: bash
env:
# gitops-pusher will use OAUTH_ID and OAUTH_SECRET if non-empty,
# gitops-pusher will use OAUTH_ID and OAUTH_SECRET or
# OAUTH_ID and ID_TOKEN if non-empty,
# otherwise it will use API_KEY.
TS_OAUTH_ID: "${{ inputs.oauth-client-id }}"
TS_OAUTH_SECRET: "${{ inputs.oauth-secret }}"
TS_ID_TOKEN: "${{ steps.fetch-id-token.outputs.id_token }}"
TS_API_KEY: "${{ inputs.api-key }}"
TS_TAILNET: "${{ inputs.tailnet }}"
run: go run tailscale.com/cmd/gitops-pusher@2078eb56f3ca310821aae3fa140aa3b0d3bda2dc "--policy-file=${{ inputs.policy-file }}" "${{ inputs.action }}"
run: go run tailscale.com/cmd/gitops-pusher@4c37141ab780dbf6c037bd64fe48ab330441ad06 "--policy-file=${{ inputs.policy-file }}" "${{ inputs.action }}"