ebidel

Web Components Resources

Specs / standardization

W3C Introduction to Web Components - explainer/overview of the technologies

• Custom Elements
• HTML Imports
• Shadow DOM
• CSS Scoping Module

scy

Opening and closing an SSH tunnel in a shell script the smart way

I recently had the following problem:

• From an unattended shell script (called by Jenkins), run a command-line tool that accesses the MySQL database on another host.
• That tool doesn't know that the database is on another host, plus the MySQL port on that host is firewalled and not accessible from other machines.

We didn't want to open the MySQL port to the network, but it's possible to SSH from the Jenkins machine to the MySQL machine. So, basically you would do something like

ssh -L 3306:localhost:3306 remotehost

kujohn

Port Forwarding in Mavericks

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Since Mavericks stopped using the deprecated ipfw (as of Mountain Lion), we'll be using pf to allow port forwarding.

####1. anchor file Create an anchor file under /etc/pf.anchors/<anchor file> with your redirection rule like:

akras14

Git Cheat Sheet

Commands

Getting Started

git init

or

lmars

# create a redis app
flynn create --remote "" redis

# create a release using the latest (at the time of writing) Docker Redis image
flynn -a redis release add -f config.json "https://registry.hub.docker.com?name=redis&id=868be653dea3ff6082b043c0f34b95bb180cc82ab14a18d9d6b8e27b7929762c"

# scale the server to one process. This may time out initially as the server pulls the image, but watch "flynn -a redis ps" and should come up.
flynn -a redis scale server=1

# redis should now be running in the cluster at redis.discoverd:6379