feat: add upload-logs-fork role

This changes the role vars to be defaults to hopefully fix the internal
tenant logs issue.

Change-Id: I1eb4b24b567297b1a15aa3d3850cf298042fccfe
diff --git a/roles/upload-logs-fork/LICENSE b/roles/upload-logs-fork/LICENSE
new file mode 100644
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+++ b/roles/upload-logs-fork/LICENSE
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+This folder is a fork of the upload-logs role available at
+https://opendev.org/zuul/zuul-jobs, licensed under the Apache License:
+
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diff --git a/roles/upload-logs-fork/README.rst b/roles/upload-logs-fork/README.rst
new file mode 100644
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+++ b/roles/upload-logs-fork/README.rst
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+Upload logs to a static webserver
+
+This uploads logs to a static server using SSH.  The server must have
+been previously added to the inventory; this can be done with the
+:zuul:role:`add-fileserver` role; see that role's documentation for a
+description of the site_logs secret in this example post-run playbook:
+
+.. code-block:: yaml
+
+   - hosts: localhost
+     roles:
+       - role: add-fileserver
+         fileserver: "{{ site_logs }}"
+
+   - hosts: "{{ site_logs.fqdn }}"
+     gather_facts: False
+     roles:
+       - role: upload-logs
+         zuul_log_url: "http://logs.example.org"
+
+**Role Variables**
+
+.. zuul:rolevar:: zuul_log_url
+
+   Base URL where logs are to be found.
+
+.. zuul:rolevar:: zuul_logserver_root
+   :default: /srv/static/logs
+
+   The root path to the logs on the logserver.
+
+.. zuul:rolevar:: zuul_log_compress
+   :default: false
+
+   When enabled, the console logs Zuul produces will be compressed
+   before uploading. You may need additional configuration for your web
+   server to view these files.
+
+.. zuul:rolevar:: zuul_log_verbose
+   :default: false
+
+   The synchronize task in this role outputs a lot of information.  By
+   default, no_log is set to avoid overwhelming a reader of the logs.
+   Set this to true to disable that behavior if it becomes necessary
+   to debug this role.
+
+.. zuul:rolevar:: zuul_site_upload_logs
+   :default: true
+
+   Controls when logs are uploaded. true, the default, means always upload
+   logs. false means never upload logs. 'failure' means to only upload logs
+   when the job has failed.
+
+   .. note:: Intended to be set by admins via site-variables.
+
+.. zuul:rolevar:: zuul_log_path_shard_build
+   :default: False
+
+   This var is consumed by set-zuul-log-path-fact which upload-logs
+   calls into. If you set this you will get log paths prefixed with the
+   first three characters of the build uuid. This will improve log file
+   sharding.
+
+   More details can be found at
+   :zuul:rolevar:`set-zuul-log-path-fact.zuul_log_path_shard_build`.
diff --git a/roles/upload-logs-fork/defaults/main.yaml b/roles/upload-logs-fork/defaults/main.yaml
new file mode 100644
index 0000000..8848aee
--- /dev/null
+++ b/roles/upload-logs-fork/defaults/main.yaml
@@ -0,0 +1,3 @@
+zuul_logserver_root: /srv/static/logs
+zuul_log_compress: false
+zuul_log_verbose: false
diff --git a/roles/upload-logs-fork/tasks/main.yaml b/roles/upload-logs-fork/tasks/main.yaml
new file mode 100644
index 0000000..a652e55
--- /dev/null
+++ b/roles/upload-logs-fork/tasks/main.yaml
@@ -0,0 +1,85 @@
+- name: Set zuul-log-path fact
+  include_role:
+    name: set-zuul-log-path-fact
+
+# Always upload (true), never upload (false) or only on failure ('failure')
+- name: Upload logs
+  when: zuul_site_upload_logs | default(true) | bool or
+        (zuul_site_upload_logs == 'failure' and not zuul_success | bool)
+  block:
+
+    - name: Create log directories
+      file:
+        path: "{{ zuul_logserver_root }}/{{ zuul_log_path }}"
+        state: directory
+        recurse: yes
+        mode: 0775
+
+    # Use chmod instead of file because ansible 2.5 file with recurse and
+    # follow can't really handle symlinks to .
+    - name: Ensure logs are readable before uploading
+      delegate_to: localhost
+      command: "chmod -R u=rwX,g=rX,o=rX {{ zuul.executor.log_root }}/"
+      # ANSIBLE0007 chmod used in place of argument mode to file
+      tags:
+        - skip_ansible_lint
+
+    - name: Upload logs to log server
+      synchronize:
+        src: "{{ zuul.executor.log_root }}/"
+        dest: "{{ zuul_logserver_root }}/{{ zuul_log_path }}/"
+        owner: no
+        group: no
+        rsync_opts:
+          - "--exclude=job-output.txt"
+          - "--exclude=job-output.json"
+      no_log: "{{ not zuul_log_verbose }}"
+
+    # After this point there are no more logs
+    - name: Compress console log and json output
+      delegate_to: localhost
+      archive:
+        path: "{{ zuul.executor.log_root }}/{{ zj_log }}"
+        mode: 0644
+      with_items:
+        - job-output.txt
+        - job-output.json
+      loop_control:
+        loop_var: zj_log
+      when: zuul_log_compress | bool
+
+    - name: Upload compressed console log and json output
+      synchronize:
+        src: "{{ zuul.executor.log_root }}/{{ zj_log }}.gz"
+        dest: "{{ zuul_logserver_root }}/{{ zuul_log_path }}/{{ zj_log }}.gz"
+        verify_host: true
+        owner: no
+        group: no
+      with_items:
+        - job-output.txt
+        - job-output.json
+      loop_control:
+        loop_var: zj_log
+      when: zuul_log_compress | bool
+
+    - name: Upload console log and json output
+      synchronize:
+        src: "{{ zuul.executor.log_root }}/{{ zj_log }}"
+        dest: "{{ zuul_logserver_root }}/{{ zuul_log_path }}/{{ zj_log }}"
+        verify_host: true
+        owner: no
+        group: no
+      with_items:
+        - job-output.txt
+        - job-output.json
+      loop_control:
+        loop_var: zj_log
+      when: not zuul_log_compress | bool
+
+- name: Return log URL to Zuul
+  delegate_to: localhost
+  zuul_return:
+    data:
+      zuul:
+        log_url: "{{ zuul_log_url }}/{{ zuul_log_path }}/"
+  when: zuul_log_url is defined