feat: add bao-secrets composite action (public, no secrets) (#545)

Shared actions live in a PUBLIC repo so CI runners can clone them anonymously. They can't clone the private spikersoft-infrastructure repo (a job token is scoped to its own repo), which is why the notifications Bao cutover failed with "Repository not found". bao-secrets is pure curl/jq logic — role_id/secret_id come from the caller's Actions secrets — so nothing sensitive is exposed. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-15 15:50:44 +00:00
parent 69060e49d7
commit db71896903
3 changed files with 166 additions and 1 deletions
@@ -0,0 +1,81 @@
+name: "Fetch OpenBao secrets"
+description: "AppRole-login to OpenBao and export requested KV v2 secrets into the job env (masked). Phase 1, spikersoft-issues#545."
+
+inputs:
+  role-id:
+    description: "AppRole role_id — the repo's BAO_ROLE_ID Actions secret."
+    required: true
+  secret-id:
+    description: "AppRole secret_id — the repo's BAO_SECRET_ID Actions secret."
+    required: true
+  bao-addr:
+    description: "OpenBao address."
+    required: false
+    default: "https://bao.spikersoft.com"
+  secrets:
+    description: |
+      One mapping per line:  ENV_NAME  <kv-v2-path>  <field>
+      The path is exactly what you'd pass to `bao kv get` (mount + logical path).
+      Blank lines and `#` comments are ignored. Example:
+        DOCKER_PASSWORD  secret/ci/shared/registry       password
+        VIDEOS_S3_KEY    secret/ci/backend/minio/videos  secret_key
+    required: true
+
+runs:
+  using: "composite"
+  steps:
+    - shell: bash
+      env:
+        BAO_ADDR: ${{ inputs.bao-addr }}
+        BAO_ROLE_ID: ${{ inputs.role-id }}
+        BAO_SECRET_ID: ${{ inputs.secret-id }}
+        BAO_SECRETS: ${{ inputs.secrets }}
+      run: |
+        set -euo pipefail
+        command -v curl >/dev/null || { echo "::error::bao-secrets needs 'curl' on the runner"; exit 1; }
+        command -v jq   >/dev/null || { echo "::error::bao-secrets needs 'jq' on the runner"; exit 1; }
+
+        # 1) AppRole login -> short-lived (15m) token. No -f so we can read the
+        #    error body; the token check below is the real gate.
+        login=$(curl -s --max-time 15 -X POST \
+          --data "{\"role_id\":\"${BAO_ROLE_ID}\",\"secret_id\":\"${BAO_SECRET_ID}\"}" \
+          "${BAO_ADDR}/v1/auth/approle/login") || true
+        TOKEN=$(printf '%s' "$login" | jq -r '.auth.client_token // empty')
+        if [ -z "$TOKEN" ]; then
+          echo "::error::OpenBao AppRole login failed: $(printf '%s' "$login" | jq -rc '.errors // "no response / network error"')"
+          exit 1
+        fi
+        echo "::add-mask::$TOKEN"
+
+        # 2) fetch each requested secret into $GITHUB_ENV (masked, multiline-safe)
+        while IFS= read -r line; do
+          line="${line%%#*}"
+          # shellcheck disable=SC2086
+          set -- $line
+          [ "$#" -eq 0 ] && continue
+          if [ "$#" -ne 3 ]; then
+            echo "::error::bad 'secrets' line (need: ENV_NAME <kv-v2-path> <field>): ${line}"
+            exit 1
+          fi
+          env_name="$1"; path="$2"; field="$3"
+          mount="${path%%/*}"; rest="${path#*/}"      # KV v2: <mount>/data/<rest>
+          resp=$(curl -s --max-time 15 -H "X-Vault-Token: $TOKEN" \
+            "${BAO_ADDR}/v1/${mount}/data/${rest}") || true
+          val=$(printf '%s' "$resp" | jq -r --arg f "$field" '.data.data[$f] // empty')
+          if [ -z "$val" ]; then
+            echo "::error::no value at '${path}' field '${field}' (wrong path/field, or this role's policy denies it): $(printf '%s' "$resp" | jq -rc '.errors // "empty"')"
+            exit 1
+          fi
+          # mask every line of the value (handles multiline secrets like keys)
+          while IFS= read -r vline; do [ -n "$vline" ] && echo "::add-mask::$vline"; done <<< "$val"
+          {
+            echo "${env_name}<<__BAO_EOF__"
+            printf '%s\n' "$val"
+            echo "__BAO_EOF__"
+          } >> "$GITHUB_ENV"
+          echo "  ✓ ${env_name}  <-  ${path}#${field}"
+        done <<< "$BAO_SECRETS"
+
+        # 3) drop the token (short-lived anyway — just tidy)
+        curl -s --max-time 10 -H "X-Vault-Token: $TOKEN" \
+          -X POST "${BAO_ADDR}/v1/auth/token/revoke-self" >/dev/null 2>&1 || true