bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

abesto

task dependencyReport {
    doLast {
        def file = new File("project-dependencies.dot")
        file.delete()
        file << "digraph {\n"
        file << "splines=ortho\n"
        rootProject.childProjects.each { item ->
            def from = item.value
            from.configurations.compile.dependencies
                    .matching { it in ProjectDependency }

JakeWharton

allprojects {
  afterEvaluate { project ->
    project.configurations.all {
      resolutionStrategy.eachDependency { DependencyResolveDetails details ->
        def requested = details.requested
        if (requested.version.contains('+')) {
          throw new GradleException("Wildcard dependency forbidden: ${requested.group}:${requested.name}:${requested.version}")
        }
      }
    }

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

ilguzin

1. Convert our ".jks" file to ".p12" (PKCS12 key store format):
 
keytool -importkeystore -srckeystore oldkeystore.jks -destkeystore newkeystore.p12 -deststoretype PKCS12
 
1.1. List new keystore file contents:
 
keytool -deststoretype PKCS12 -keystore newkeystore.p12 -list
 
2. Extract pem (certificate) from ".p12" keysotre file:
 

jasonrudolph

About

This gist is a collection of my rough notes from Strange Loop 2012.

@jasonrudolph on Twitter | @jasonrudolph on GitHub

Did I Mention That They're Rough?

OscarGodson

/**
 * To get all the info to login, sign into your MongoHQ account, go to the db you want,
 * click the "Database Info" tab, then look for the line that looks like:
 * -------------------------------------------------------------
 * mongodb://<user>:<password>@staff.mongohq.com:10056/node-test
 * ---------|     |-|        |------------------|    |-|       |
 *           USER    PASSWORD                    PORT   DB NAME
 *
 * ALSO, for testing, you should manually add a document and collection into MongoHQ
 * from their "Add a Collection" > "Add a Document" links, then below we'll log it.