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Home73k

Personal website with blog.

Blog posts

Posts are markdown files stored under priv/content and parsed by Earmark. This can be configured in config.exs under config :home73k, :app_global_vars, blog_content: "path/to/content"

Syntax highlighting

For the challenge of it, and to keep user's browsers from having to run javascript just to highlight some code, I chose to do server-side syntax highlighting.

Due to the lexer limitations of elixir-native solutions, the highlighter uses Chroma by calling its command-linie-interface via System.cmd

However, this requires installing golang as well as chroma. You can add go to your path, but once chroma is installed, just make sure Home73k's config.exs is configured to point directly to the chroma binary under config :home73k, :app_global_vars, chroma_bin: "path/to/bin/chroma" -- "priv/go/bin/chroma" by default.

Deploying

New versions

When improvements are made, we can update the deployed version like so:

cd /opt/home73k
git pull
mix deps.get --only prod
MIX_ENV=prod mix compile
# update chroma in priv gopath
GOPATH=$(pwd)/priv/go go get -u github.com/alecthomas/chroma/cmd/chroma
# rebuild static assets:
rm -rf priv/static/*
npm run deploy --prefix ./assets
MIX_ENV=prod mix phx.digest
MIX_ENV=prod mix release --overwrite
# test starting it:
MIX_ENV=prod _build/prod/rel/home73k/bin/home73k start

systemd unit:

[Unit]
Description=Home73k service
After=local-fs.target network.target

[Service]
Type=simple
User=runuser
Group=runuser
WorkingDirectory=/opt/home73k/_build/prod/rel/home73k
ExecStart=/opt/home73k/_build/prod/rel/home73k/bin/home73k start
ExecStop=/opt/home73k/_build/prod/rel/home73k/bin/home73k stop
#EnvironmentFile=/etc/default/myApp.env
Environment=LANG=en_US.utf8
Environment=MIX_ENV=prod
#Environment=PORT=4000
LimitNOFILE=65535
UMask=0027
SyslogIdentifier=home73k
Restart=always

[Install]
WantedBy=multi-user.target

nginx config:

    upstream phoenixhome {
      server 127.0.0.1:4721 max_fails=5 fail_timeout=60s;
    }
    server {
      location / {
        allow all;
        # Proxy Headers
        proxy_http_version 1.1;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header X-Cluster-Client-Ip $remote_addr;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_redirect off;
        # WebSockets
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_pass http://phoenixhome;
      }
    }

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