Added tagging

mstathers · mstathers · commit 89abc783bbcb · 2025-12-01T16:52:16.000-08:00
diff --git a/Makefile b/Makefile
@@ -1,7 +1,12 @@
+.PHONY: generate_tags
+
 local:
 	jekyll serve --watch
 
-build:
+generate_tags:
+	bash generate_tags.sh
+
+build: generate_tags
 	jekyll build
 
 upload: build
diff --git a/_config.yml b/_config.yml
@@ -1,9 +1,11 @@
 highlighter: rouge
 url: http://stathers.net
 
+date_format: "%b %-d, %Y"
+
 gems: [jekyll-paginate]
 plugins: [jekyll-paginate]
 
 host: 127.0.0.1
 paginate: 1
-exclude: [README.md, Makefile]
+exclude: [README.md, Makefile, generate_tags.sh]
diff --git a/_layouts/posts.html b/_layouts/posts.html
@@ -7,8 +7,17 @@ <h2>{{ page.title }}</h2>
 
 <div id="page_date">
     {{ page.date | date: "%-d %B %Y" }}
+
+    {%- if page.tags -%}
+        {% for tag in page.tags %}
+            <a href="{{site.baseurl}}/tag-list.html#{{tag | slugize}}">
+                #{{ tag }}
+            </a>
+        {% endfor %}
+    {%- endif -%}
 </div>
 
+
 <div id="post">
     {{ content }}
 </div>
diff --git a/_layouts/tagpage.html b/_layouts/tagpage.html
@@ -0,0 +1,15 @@
+---
+layout: default
+---
+<div class="post">
+<h1>Tag: {{ page.tag | replace: '-', " " }}</h1>
+<ul>
+{% for post in site.tags[page.tag] %}
+  <li><a href="{{ post.url }}">{{ post.title }}</a> ({{ post.date | date: "%b %-d, %Y" }})<br>
+    {{ post.description }}
+  </li>
+{% endfor %}
+</ul>
+</div>
+<hr>
+{{ content }}
diff --git a/_posts/2014-05-09-website-relaunch.md b/_posts/2014-05-09-website-relaunch.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: Website Relaunch - Now with more Jekyll
+tags: web_hosting jekyll
 ---
 
 For various reasons, I decided to recreate my personal website. Although not lacking features, the old website was fairly ugly and used a very cobbled-together custom template approached that proved difficult to make many changes to.
diff --git a/_posts/2014-05-14-gandi-dns.md b/_posts/2014-05-14-gandi-dns.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: Transferring Domain to Gandi.net
+tags: web_hosting dns
 ---
 
 I recently decided to transfer my domain away from my original registrar, <a href="http://netfirms.ca" target="_blank">Netfirms.ca</a> to <a href="http://www.gandi.net" target="_blank">Gandi.net</a>.
diff --git a/_posts/2014-06-15-video-list-website.md b/_posts/2014-06-15-video-list-website.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: Project - Video List Website
+tags: linux
 ---
 
 An old project, revived, cleaned up and posted to <a href="https://github.com/mstathers/video-list-website/" target="_blank">GitHub</a>.
diff --git a/_posts/2014-08-03-raspberry-pi-motion-controlled-stair-lights-part-1.md b/_posts/2014-08-03-raspberry-pi-motion-controlled-stair-lights-part-1.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: Raspberry Pi - Motion Controlled LED Lights on Stairs - Part 1
+tags: electronics raspberry_pi
 ---
 
 A quick back-story, my parents purchased a house in 2012 which could be classified as a bit of a "fixer-upper". As the motivated people they are, they decided to perform a large majority of the renovations themselves.
diff --git a/_posts/2015-03-01-basic-iptables.md b/_posts/2015-03-01-basic-iptables.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: iptables - Simple Base Configuration
+tags: networking linux
 ---
 
 I find this is a great configuration to start with when working on a new server. From here, I typically customize based on the nature of the server. Hint: take a look at the listening services on the server and evaluate whether or not those services need to be locked down, database connections are a great example of this. I like to use a quick `netstat -nlp` command for this.
diff --git a/_posts/2015-06-25-source-policy-routing.md b/_posts/2015-06-25-source-policy-routing.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: Linux - Source Policy Routing
+tags: networking linux
 ---
 
 *"If I have two networks attached to my server, how do I make sure traffic that comes into an interface goes out the same interface?"*
diff --git a/_posts/2016-01-14-thawte-premium-ssl-md5-gnutls.md b/_posts/2016-01-14-thawte-premium-ssl-md5-gnutls.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: GnuTLS, a Thawte CA certificate and CVE-2015-7575
+tags: linux ssl
 ---
 
 ### TLDR;
diff --git a/_posts/2016-03-31-intermittent-delivery-troubleshooting-packet-capture.md b/_posts/2016-03-31-intermittent-delivery-troubleshooting-packet-capture.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: TCP analysis and Intermittent Delivery Issues
+tags: networking
 ---
 
 ### Introduction
diff --git a/_posts/2016-04-17-raspberry-pi-kiosk-wall-monitor-station.md b/_posts/2016-04-17-raspberry-pi-kiosk-wall-monitor-station.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: Raspberry Pi - Kiosk Style Wall Monitor
+tags: raspberry_pi linux
 ---
 
 It is not unusual to setup some displays to provide at-a-glance metrics for the various systems under your care. With great software like <a href="https://www.nagios.org/" target="_blank">Nagios</a>, <a href="http://www.cacti.net/" target="_blank">Cacti</a>, <a href="http://www.splunk.com/" target="_blank">Splunk</a>, <a href="https://www.graylog.org/" target="_blank">Graylog</a> and many others, it is easy to collect, centralize and visualize your data. However, in this article I want to talk about an easy and cost-effective way to handily display this data.
diff --git a/_posts/2016-07-29-bash-productivity-tips.md b/_posts/2016-07-29-bash-productivity-tips.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: Bash Tips to Increase Productivity
+tags: linux bash
 ---
 
 ### Reverse Command History Search
diff --git a/_posts/2017-02-07-aws-s3-syncing.md b/_posts/2017-02-07-aws-s3-syncing.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: Syncing files to Amazon's AWS S3
+tags: linux web_hosting aws
 ---
 
 Many people have heard of Amazon's cloud product, <a href="https://aws.amazon.com/" target="_blank">AWS</a>. The story behind it is really interesting and well worth the read. I wont go into it here, but the short version of it is that Amazon developed a solution in-house to serve up their online store. This technology was so good that they were able to successfully split it into it's own $150 USD billion dollar product (estimated in 2015).
diff --git a/_posts/2017-05-17-vagrant-intro.md b/_posts/2017-05-17-vagrant-intro.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: Vagrant Intro
+tags: linux configuration_management
 ---
 
 > <a href="https://www.vagrantup.com/" target="_blank">Vagrant</a> is a tool for building and managing virtual machine environments in a single workflow. With an easy-to-use workflow and focus on automation, Vagrant lowers development environment setup time, increases production parity, and makes the "works on my machine" excuse a relic of the past.
diff --git a/_posts/2020-03-17-datadog-php-tracer-aarch64.md b/_posts/2020-03-17-datadog-php-tracer-aarch64.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: Datadog PHP Tracer on aarch64
+tags: linux
 ---
 
 Recently we have been exploring the use of the a1 instance type in AWS EC2 as the performance is favorable to our workloads the cost makes this instance type very appealing. This instance type uses an ARM processor and therefor has the architecture of `aarch64`. More information about the instance class can be found <a href="https://aws.amazon.com/ec2/instance-types/a1/" target="_blank">here</a>.
diff --git a/_posts/2020-06-15-aws-haproxy-service-discovery.md b/_posts/2020-06-15-aws-haproxy-service-discovery.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: HAProxy Service Discovery with AWS Autoscaling Groups
+tags: linux aws web_hosting
 ---
 
 ## Background and History
diff --git a/_posts/2021-09-15-freeipa-dirsrv-segfault.md b/_posts/2021-09-15-freeipa-dirsrv-segfault.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: FreeIPA dirsrv Segfault
+tags: linux
 ---
 
 Our FreeIPA server 4.6.8-5 running on CentOS 7 recently had a problem. We couldn't start the dirsrv service. Investigation in the kernal log revealed a segfault.
diff --git a/_posts/2023-06-13-tailscale-funnel.md b/_posts/2023-06-13-tailscale-funnel.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: Tailscale Funnel
+tags: linux jellyfin tailscale
 ---
 
 Recently I've been exploring the <a href="https://jellyfin.org/" target="_blank">Jellyfin</a> media system running via docker on my home file server. I've been really happy with it recommend it if you're looking for a solution to stream your media.
diff --git a/_posts/2023-08-01-github-actions.md b/_posts/2023-08-01-github-actions.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: GitHub Actions for Continuous Deployment
+tags: linux web_hosting ci_cd github docker
 ---
 
 [GitHub Actions](https://github.com/features/actions){:target="_blank"} allows you to automate many facets of a project, whether you want to implement some automated testing via a continuous integration model, deploy a project automatically, or manage aspects of your GitHub repository itself. There are pricing tiers, but I find the free tier to be very generous for my needs; it includes 2000 minutes of runtime per month.
diff --git a/_posts/2023-08-14-docker-default-address-pool.md b/_posts/2023-08-14-docker-default-address-pool.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: Docker Default Address Pool
+tags: docker
 ---
 
 Every time a [Docker Compose](https://docs.docker.com/compose/){:target=_blank} application starts it creates a [Docker network](https://docs.docker.com/network/){:target=_blank} to facilitate inter-container communication. I encountered a problem where sometimes the network assigned to the application would conflict with services running on our internal network. Troubleshooting this is a different discussion, but the fix is straightforward, the default address pool from which Docker assigns new Docker networks needs to change.
diff --git a/_posts/2025-08-12-networkmanager-source-policy-routing.md b/_posts/2025-08-12-networkmanager-source-policy-routing.md
@@ -1,6 +1,7 @@
 ---
 layout: posts
 title: NetworkManager - Source Policy Routing
+tags: networking linux
 ---
 
 This can be considered a part two of a previous post on [source policy routing]({% post_url 2015-06-25-source-policy-routing %}). Review that post for an overview of source policy routing. 
diff --git a/blog-list.html b/blog-list.html
@@ -3,10 +3,25 @@
 title: Blog List
 ---
 <h2>Blog List</h2>
+<div id="tags-cloud">
+{% capture temptags %}
+  {% for tag in site.tags %}
+    {{ tag[1].size | plus: 10 }}#{{ tag[0] }}#{{ tag[1].size }}
+  {% endfor %}
+{% endcapture %}
+
+{% assign sortedtemptags = temptags | split:' ' %}
+{%- for temptag in sortedtemptags -%}
+  {% assign tagitems = temptag | split: '#' %}
+  {%- capture tagsize -%}{{ tagitems[0] }} {%- endcapture -%}
+  {%- capture tagname -%}{{ tagitems[1] }}{%- endcapture -%}
+  <a href="/tag/{{ tagname }}"><code class="highligher-rouge" style="font-size:{{ tagsize }}px;"><nobr>{{ tagname }}</nobr></code></a>
+{% endfor %}
+</div>
 <div>
   <ul>
     {% for post in site.posts %}
-      <li><span>{{ post.date | date: "%-d %B %Y" }}</span> &raquo; <a href="{{ post.url }}">{{ post.title }}</a></li>
+      <li><a href="{{ post.url }}">{{ post.title }}</a> ({{ post.date | date: "%b %-d, %Y" }})<br>
     {% endfor %}
   </ul>
 </div>
diff --git a/generate_tags.sh b/generate_tags.sh
@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+TAGS=()
+
+# Adding tag files.
+for tag in $(grep -h tags: ./_posts/* | sed -e 's/^tags: //' | tr ' ' '\n' | sort | uniq); do
+        TAGS+=($tag)
+
+        if [ -a ./tag/${tag}.md ]; then
+            echo "Already have a tag file for $tag, skipping..."
+            continue
+        fi
+
+        echo "---
+layout: tagpage
+title: \"Tag: #$tag\"
+tag: $tag
+robots: noindex
+---" > ./tag/${tag}.md;
+done
+
+
+# Removing unused tag files.
+for file in $(ls ./tag/); do
+    exists=false
+    for tag in ${TAGS[@]}; do
+        if [[ $tag == $(echo $file | cut -d'.' -f1) ]]; then
+            exists=true
+            break
+        fi
+    done
+    if ! $exists; then
+        echo "$file doesn't match a tag, removing..."
+        rm -f ./tag/$file
+    fi
+
+done
+
diff --git a/index.html b/index.html
@@ -8,6 +8,14 @@ <h2>{{ first_post.title }}</h2>
 </div>
 <div id="page_date">
     {{ first_post.date | date: "%-d %B %Y" }}
+
+    {%- if first_post.tags -%}
+        {% for tag in first_post.tags %}
+            <a href="{{site.baseurl}}/tag/{{tag | slugize}}">
+                #{{ tag }}
+            </a>
+        {% endfor %}
+    {%- endif -%}
 </div>
 
 <div id="post">
diff --git a/tag/aws.md b/tag/aws.md
@@ -0,0 +1,6 @@
+---
+layout: tagpage
+title: "Tag: #aws"
+tag: aws
+robots: noindex
+---
diff --git a/tag/bash.md b/tag/bash.md
@@ -0,0 +1,6 @@
+---
+layout: tagpage
+title: "Tag: #bash"
+tag: bash
+robots: noindex
+---
diff --git a/tag/ci_cd.md b/tag/ci_cd.md
@@ -0,0 +1,6 @@
+---
+layout: tagpage
+title: "Tag: #ci_cd"
+tag: ci_cd
+robots: noindex
+---
diff --git a/tag/configuration_management.md b/tag/configuration_management.md
@@ -0,0 +1,6 @@
+---
+layout: tagpage
+title: "Tag: #configuration_management"
+tag: configuration_management
+robots: noindex
+---
diff --git a/tag/dns.md b/tag/dns.md
@@ -0,0 +1,6 @@
+---
+layout: tagpage
+title: "Tag: #dns"
+tag: dns
+robots: noindex
+---
diff --git a/tag/docker.md b/tag/docker.md
@@ -0,0 +1,6 @@
+---
+layout: tagpage
+title: "Tag: #docker"
+tag: docker
+robots: noindex
+---
diff --git a/tag/electronics.md b/tag/electronics.md
@@ -0,0 +1,6 @@
+---
+layout: tagpage
+title: "Tag: #electronics"
+tag: electronics
+robots: noindex
+---
diff --git a/tag/github.md b/tag/github.md
@@ -0,0 +1,6 @@
+---
+layout: tagpage
+title: "Tag: #github"
+tag: github
+robots: noindex
+---
diff --git a/tag/jekyll.md b/tag/jekyll.md
@@ -0,0 +1,6 @@
+---
+layout: tagpage
+title: "Tag: #jekyll"
+tag: jekyll
+robots: noindex
+---
diff --git a/tag/jellyfin.md b/tag/jellyfin.md
@@ -0,0 +1,6 @@
+---
+layout: tagpage
+title: "Tag: #jellyfin"
+tag: jellyfin
+robots: noindex
+---
diff --git a/tag/linux.md b/tag/linux.md
@@ -0,0 +1,6 @@
+---
+layout: tagpage
+title: "Tag: #linux"
+tag: linux
+robots: noindex
+---
diff --git a/tag/networking.md b/tag/networking.md
@@ -0,0 +1,6 @@
+---
+layout: tagpage
+title: "Tag: #networking"
+tag: networking
+robots: noindex
+---
diff --git a/tag/raspberry_pi.md b/tag/raspberry_pi.md
@@ -0,0 +1,6 @@
+---
+layout: tagpage
+title: "Tag: #raspberry_pi"
+tag: raspberry_pi
+robots: noindex
+---
diff --git a/tag/ssl.md b/tag/ssl.md
@@ -0,0 +1,6 @@
+---
+layout: tagpage
+title: "Tag: #ssl"
+tag: ssl
+robots: noindex
+---
diff --git a/tag/tailscale.md b/tag/tailscale.md
@@ -0,0 +1,6 @@
+---
+layout: tagpage
+title: "Tag: #tailscale"
+tag: tailscale
+robots: noindex
+---
diff --git a/tag/web_hosting.md b/tag/web_hosting.md
