Docker

envoy, docker and websockets – debugging and configuration

Websockets are an exciting technology, allowing you to upgrade a HTTP connection to a long-running persistent binary connection, which you can use to send bi-directional messages.As an aside, the MQTT protocol can be transported using websockets – which is the only (?) way for a JavaScript client delivered by the website, for instance.In any case, [...]

By | Mai 18th, 2019|Development, Docker|Kommentare deaktiviert für envoy, docker and websockets – debugging and configuration

Install Crystal on Docker: how to add the Crystal repository to Docker in the Dockerfile

Dockerfile (excerpt)ENV APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=DontWarn RUN apt-get update && apt-get install -y \          software-properties-common \          build-essential \         libevent-dev \         libssl-dev \         libxml2-dev \         libyaml-dev \         libgmp-dev \         libreadline-dev \         apt-transport-https \         iputils-ping \         git \         aptitude \         nano \         openssh-server \         && apt-key adv --keyserver keys.gnupg.net --recv-keys 09617FD37CC06B54 \         && add-apt-repository 'deb https://dist.crystal-lang.org/apt crystal main' [...]

By | Januar 11th, 2019|Crystal Language, Docker|Kommentare deaktiviert für Install Crystal on Docker: how to add the Crystal repository to Docker in the Dockerfile