From bc6e4a4f137415f678f8506a6fd6bfc06d2d24c9 Mon Sep 17 00:00:00 2001
From: Artanicus <artanicus@nocturnal.fi>
Date: Thu, 25 Apr 2019 13:31:20 +0300
Subject: [PATCH] Initial import of the salt state to deploy wttr.in

---
 share/salt/README.md    |  11 ++++
 share/salt/init.sls     | 112 ++++++++++++++++++++++++++++++++++++++++
 share/salt/pillar.sls   |   2 +
 share/salt/start.sh     |  12 +++++
 share/salt/wegorc       |  58 +++++++++++++++++++++
 share/salt/wttr.service |   9 ++++
 6 files changed, 204 insertions(+)
 create mode 100644 share/salt/README.md
 create mode 100644 share/salt/init.sls
 create mode 100644 share/salt/pillar.sls
 create mode 100755 share/salt/start.sh
 create mode 100644 share/salt/wegorc
 create mode 100644 share/salt/wttr.service

diff --git a/share/salt/README.md b/share/salt/README.md
new file mode 100644
index 0000000..f15d266
--- /dev/null
+++ b/share/salt/README.md
@@ -0,0 +1,11 @@
+# Opinionated example of deployment via Salt Stack
+
+## Assumptions:
+  * user & group srv:srv exist, this is used as a generic service runner
+  * you want to run the service on port 80, directly exposed to the interwebs (you really want to add a reverse SSL proxy in between)
+  * You have, or are willing to deploy Salt Stack.
+  * A bit of assembly is required since you need to move pillar.sls into your saltroot/pillar/ and the rest into saltroot/wttr/
+  * You want metric-sm units. Just roll your own wegorc to change this
+
+## Caveats:
+  * Doesn't do enough to make a recent master checkout work, i.e. needs further improvement. Latest known working revision is 0d76ba4a3e112694665af6653040807835883b22
diff --git a/share/salt/init.sls b/share/salt/init.sls
new file mode 100644
index 0000000..5994262
--- /dev/null
+++ b/share/salt/init.sls
@@ -0,0 +1,112 @@
+wttr:
+  service.running:
+    - enable: True
+    - watch:
+      - file: /srv/ephemeral/start.sh
+      - git: wttr-repo
+    - require:
+      - pkg: wttr-dependencies
+      - git: wttr-repo
+      - cmd: wego
+      - archive: geolite-db
+
+# package names are from Ubuntu 18.04, you may need to adjust if on a different distribution
+wttr-dependencies:
+  pkg.installed:
+    - pkgs:
+      - golang
+      - gawk
+      - python-setuptools
+      - python-dev
+      - python-dnspython
+      - python-geoip2
+      - python-geopy
+      - python-gevent
+      - python-flask
+      - python-pil
+      - authbind
+
+wttr-repo:
+  git.latest:
+    - name: https://github.com/chubin/wttr.in
+    - rev: master
+    - target: /srv/ephemeral/wttr.in
+    - require:
+      - /srv/ephemeral
+
+wttr-start:
+  file.managed:
+    - name: /srv/ephemeral/start.sh
+    - source: salt://wttr/start.sh
+    - mode: '0770'
+    - user: srv
+    - group: srv
+
+wegorc:
+  file.managed:
+    - name: /srv/ephemeral/.wegorc
+    - user: srv
+    - group: srv
+    - source: salt://wttr/wegorc
+    - template: jinja
+    - context:
+      apikey: {{ pillar['wttr']['apikey'] }}
+
+geolite-db:
+   archive.extracted:
+    - name: /srv/ephemeral
+    - source: http://geolite.maxmind.com/download/geoip/database/GeoLite2-City.tar.gz
+    - source_hash: http://geolite.maxmind.com/download/geoip/database/GeoLite2-City.tar.gz.md5
+    - keep_source: True
+    - options: --strip-components=1 # flatten directory structure
+    - enforce_toplevel: False
+
+# Could benefit from improvement, won't get updated automatically at all
+wego:
+  cmd.run:
+    - onlyif: 'test ! -e /srv/ephemeral/bin/wego'
+    - env:
+      - GOPATH: /srv/ephemeral
+    - name: go get -u github.com/schachmat/wego && go install github.com/schachmat/wego
+    - cwd: /srv/ephemeral/
+    - require:
+      - pkg: wttr-dependencies
+      - file: wegorc
+
+/srv/ephemeral:
+  file.directory:
+    - makedirs: True
+
+{% for dir in '/srv/ephemeral/wttr.in/log','/srv/ephemeral/wttr.in/cache' %}
+{{ dir }}:
+  file.directory:
+    - user: srv
+    - group: srv
+    - makedirs: True
+    - recurse:
+        - user
+        - group
+    - require_in:
+      - service: wttr
+{% endfor %}
+
+/etc/systemd/system/wttr.service:
+  file:
+    - managed
+    - source: salt://wttr/wttr.service
+    - require:
+      - file: wttr-start
+      - file: authbind-80
+    - require_in:
+      - service: wttr
+
+authbind-80:
+  file:
+    - managed
+    - name: /etc/authbind/byport/80
+    - user: srv
+    - group: srv
+    - mode: 770
+    - replace: False
+    - require:
+      - pkg: wttr-dependencies
diff --git a/share/salt/pillar.sls b/share/salt/pillar.sls
new file mode 100644
index 0000000..5b61ecc
--- /dev/null
+++ b/share/salt/pillar.sls
@@ -0,0 +1,2 @@
+wttr:
+  apikey: insert-api-key-here-and-make-this-pillar-available-to-salt
diff --git a/share/salt/start.sh b/share/salt/start.sh
new file mode 100755
index 0000000..ef8a298
--- /dev/null
+++ b/share/salt/start.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+export WEGORC="/srv/ephemeral/.wegorc"
+export GOPATH="/srv/ephemeral"
+
+export WTTR_MYDIR="/srv/ephemeral/wttr.in"
+export WTTR_GEOLITE="/srv/ephemeral/GeoLite2-City.mmdb"
+export WTTR_WEGO="$GOPATH/bin/wego"
+
+export WTTR_LISTEN_HOST="0.0.0.0"
+export WTTR_LISTEN_PORT="80"
+
+python $WTTR_MYDIR/bin/srv.py
diff --git a/share/salt/wegorc b/share/salt/wegorc
new file mode 100644
index 0000000..7f71c57
--- /dev/null
+++ b/share/salt/wegorc
@@ -0,0 +1,58 @@
+# wego configuration
+# 
+# This config has https://github.com/schachmat/ingo syntax.
+# Empty lines or lines starting with # will be ignored.
+# All other lines must look like "KEY=VALUE" (without the quotes).
+# The VALUE must not be enclosed in quotes as well!
+
+# aat-frontend: Show geo coordinates (default false)
+aat-coords=false
+
+# aat-frontend: Monochrome output (default false)
+aat-monochrome=false
+
+# BACKEND to be used (default forecast.io)
+backend=forecast.io
+
+# NUMBER of days of weather forecast to be displayed (default 3)
+days=3
+
+# forecast backend: the api KEY to use (default )
+forecast-api-key={{ apikey }}
+
+# forecast backend: print raw requests and responses (default false)
+forecast-debug=false
+
+# forecast backend: the LANGUAGE to request from forecast.io (default en)
+forecast-lang=en
+
+# FRONTEND to be used (default ascii-art-table)
+frontend=ascii-art-table
+
+# json frontend: do not indent the output (default false)
+jsn-no-indent=false
+
+# LOCATION to be queried (default 40.748,-73.985)
+location=40.748,-73.985
+
+# openweathermap backend: the api KEY to use (default )
+owm-api-key=
+
+# openweathermap backend: print raw requests and responses (default false)
+owm-debug=false
+
+# openweathermap backend: the LANGUAGE to request from openweathermap (default en)
+owm-lang=en
+
+# UNITSYSTEM to use for output.
+# Choices are: metric, imperial, si, metric-ms (default metric)
+units=metric-ms
+
+# worldweatheronline backend: the api KEY to use (default )
+wwo-api-key=
+
+# worldweatheronline backend: print raw requests and responses (default false)
+wwo-debug=false
+
+# worldweatheronline backend: the LANGUAGE to request from worldweatheronline (default en)
+wwo-lang=en
diff --git a/share/salt/wttr.service b/share/salt/wttr.service
new file mode 100644
index 0000000..a912e19
--- /dev/null
+++ b/share/salt/wttr.service
@@ -0,0 +1,9 @@
+[Unit]
+Description=Wttr weather service
+
+[Service]
+ExecStart=/usr/bin/authbind --deep /srv/ephemeral/start.sh
+Restart=always
+
+[Install]
+WantedBy=multi-user.target