Add JJBB jobs to .ci (#749)

This adds the Jenkins jobs definitions to the repo so they can be
managed and updated here.

.ci/jobs/defaults.yml

@@ -0,0 +1,64 @@
+---
+
+##### GLOBAL METADATA
+
+- meta:
+    cluster: clients-ci
+
+##### JOB DEFAULTS
+
+- job:
+    project-type: matrix
+    logrotate:
+      daysToKeep: 30
+      numToKeep: 100
+    properties:
+    - github:
+        url: https://github.com/elastic/elasticsearch-js/
+    - inject:
+        properties-content: HOME=$JENKINS_HOME
+    concurrent: true
+    node: flyweight
+    scm:
+    - git:
+        name: origin
+        credentials-id: f6c7695a-671e-4f4f-a331-acdce44ff9ba
+        reference-repo: /var/lib/jenkins/.git-references/elasticsearch-js.git
+        branches:
+        - ${branch_specifier}
+        url: https://github.com/elastic/elasticsearch-js.git
+        wipe-workspace: 'True'
+    triggers:
+    - github
+    axes:
+    - axis:
+        type: slave
+        name: label
+        values:
+        - linux
+    - axis:
+        type: yaml
+        filename: .ci/test-matrix.yml
+        name: ELASTICSEARCH_VERSION
+    - axis:
+        type: yaml
+        filename: .ci/test-matrix.yml
+        name: NODE_JS_VERSION
+    yaml-strategy:
+      exclude-key: exclude
+      filename: .ci/test-matrix.yml
+    wrappers:
+    - ansicolor
+    - timeout:
+        type: absolute
+        timeout: 120
+        fail: true
+    - timestamps
+    - workspace-cleanup
+    builders:
+    - shell: |-
+        #!/usr/local/bin/runbld
+        .ci/run-tests
+    publishers:
+    - email:
+        recipients: infra-root+build@elastic.co

.ci/jobs/elastic+elasticsearch-js+master.yml

@@ -0,0 +1,14 @@
+---
+- job:
+    name: elastic+elasticsearch-js+master
+    display-name: 'elastic / elasticsearch-js # master'
+    description: Testing the elasticsearch-js master branch.
+    parameters:
+    - string:
+        name: branch_specifier
+        default: refs/heads/master
+        description: the Git branch specifier to build (<branchName>, <tagName>,
+          <commitId>, etc.)
+    triggers:
+    - github
+    - timed: '@daily'

.ci/jobs/elastic+elasticsearch-js+next.yml

@@ -0,0 +1,11 @@
+---
+- job:
+    name: elastic+elasticsearch-js+next
+    display-name: 'elastic / elasticsearch-js # next'
+    description: Testing the elasticsearch-js next branch.
+    parameters:
+    - string:
+        name: branch_specifier
+        default: refs/heads/next
+        description: the Git branch specifier to build (<branchName>, <tagName>,
+          <commitId>, etc.)

.ci/jobs/elastic+elasticsearch-js+pull-request.yml

@@ -0,0 +1,19 @@
+---
+- job:
+    name: elastic+elasticsearch-js+pull-request
+    display-name: 'elastic / elasticsearch-js # pull-request'
+    description: Testing of elasticsearch-js pull requests.
+    scm:
+    - git:
+        branches:
+        - ${ghprbActualCommit}
+        refspec: +refs/pull/*:refs/remotes/origin/pr/*
+    triggers:
+    - github-pull-request:
+        org-list:
+        - elastic
+        allow-whitelist-orgs-as-admins: true
+        github-hooks: true
+        status-context: clients-ci
+        cancel-builds-on-update: true
+    publishers: []