sslip.io has Concourse's Continuous Integration

- CI-related files are under `ci/`

ci/pipeline.yml

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+# pipeline for Concourse CI for sslip.io
+# DNS Checks
+groups:
+- name: sslip.io
+  jobs:
+  - check-dns
+
+
+jobs:
+- name: check-dns
+  file:
+  plan:
+  - {get: sslip.io,   trigger: true}
+  - task: check-dns
+    file: sslip.io/ci/tasks/check-dns.yml
+    params:
+      DOMAIN: sslip.io
+
+resources:
+- name: sslip.io
+  type: git
+  source:
+    uri: https://github.com/cunnie/sslip.io
+    branch: master

ci/tasks/check-dns.sh

@@ -0,0 +1,2 @@
+#!/bin/bash -ex
+true

ci/tasks/check-dns.yml

@@ -0,0 +1,14 @@
+---
+platform: linux
+image_resource:
+  type: docker-image
+  source: {repository: fedora}
+
+inputs:
+- name: sslip.io
+
+run:
+  path: sslip.io/ci/tasks/check-dns.sh
+
+params:
+  DOMAIN: ""