This (and related gists) captures how i created my docker swarm architecture. This is intended mostly for my own notes incase i need to re-creeate anything later! As such expect some typos and possibly even an error...
Each major task has its own gist, this is to help with maitainability long term.
You'd like a docker container that runs cron jobs, with the output of those cron jobs going to stdout so they are accessible as docker logs. How do you do that?
In your Dockerfile, apt-get -y install cron Use apk or whatever if you are running on alpine or another distribution
Set the command or entrypoint in your Dockerfile to run cron 9n the foreground
ENTRYPOINT ["/usr/sbin/cron", "-f"]
| groups: | |
| - name: example | |
| rules: | |
| # Alert for any cluster that has average CPU idle < 50% | |
| - alert: HighUsage | |
| expr: avg(irate(node_cpu_seconds_total{mode="idle"}[1m]) * 100) < 50 | |
| for: 1m | |
| annotations: | |
| summary: "High usage on {{ $labels.instance }}" | |
| description: "{{ $labels.instance }} has a average CPU idle (current value: {{ $value }}s)" |
| # Change the run script on `settings> Build Execution and Deployment > Console > Python Console` to | |
| # hoping you have your settings at project/project/settings.py (if not, change accordingly;) | |
| import os,sys,django;sys.path.extend([WORKING_DIR_AND_PYTHON_PATHS]) | |
| os.environ['DJANGO_SETTINGS_MODULE'] = WORKING_DIR_AND_PYTHON_PATHS.split('/')[-1]+'.settings' | |
| print('Python {0} on {1} using {2} as settings'.format(sys.version, sys.platform, os.environ['DJANGO_SETTINGS_MODULE'])) | |
| django.setup() |
| # Source: http://www.powershellmagazine.com/2013/07/18/pstip-how-to-switch-off-display-with-powershell/ | |
| # Turn display off by calling WindowsAPI. | |
| # SendMessage(HWND_BROADCAST,WM_SYSCOMMAND, SC_MONITORPOWER, POWER_OFF) | |
| # HWND_BROADCAST 0xffff | |
| # WM_SYSCOMMAND 0x0112 | |
| # SC_MONITORPOWER 0xf170 | |
| # POWER_OFF 0x0002 | |
| # read more at https://terrty.net/2014/ssl-tls-in-nginx/ | |
| # latest version on https://gist.github.com/paskal/628882bee1948ef126dd/126e4d1daeb5244aacbbd847c5247c2e293f6adf | |
| # security test score: https://www.ssllabs.com/ssltest/analyze.html?d=terrty.net | |
| # your nginx version might not have all directives included, test this configuration before using in production against your nginx: | |
| # $ nginx -c /etc/nginx/nginx.conf -t | |
| server { | |
| # public key, contains your public key and class 1 certificate, to create: | |
| # (example for startssl) | |
| # $ (cat example.com.pem & wget -O - https://www.startssl.com/certs/class1/sha2/pem/sub.class1.server.sha2.ca.pem) | tee -a /etc/nginx/ssl/domain.pem > /dev/null |
