Archives: devops

cross compile native libwebrtc ( on x86_64 host) for arm64 No ratings yet.

Direct compile webrtc on arm64 will fail: webrtc seems does not support direct support on arm, we will get errors: … Running hooks: 18% ( 4/22) sysroot_arm64 ________ running ‘vpython src/build/linux/sysroot_scripts/ –arch=arm64’ in ‘/webrtcbuilds/out’ Installing Debian sid arm64 root image: /webrtcbuilds/out/src/build/linux/debian_sid_arm64-sysroot Downloading Running hooks: 50% (11/22) binutils ________ running ‘vpython src/third_party/binutils/’ in ‘/webrtcbuilds/out’ Host • Read More »

Apache Kafka big picture and quick start No ratings yet.

What is Apache Kafka? ( big picture)  I found the article ( from Jay Kreps) presented a very good big picture on what Kafka suppose to do: you can use Kafka to build a stream data platform. Here the pictures from that article. The big idea is simple: many business processes can be modeled • Read More »

Ansible quick howto No ratings yet.

Ansible is mainly using ssh to manage nodes, it is an agentless architecture different from chef, puppet. here is quick howto to get started: git clone git:// –recursive $ cd ./ansible $source ./hacking/env-setup sudo pip install paramiko PyYAML Jinja2 httplib2 six sshpass $ echo “” > ~/ansible_hosts $ export ANSIBLE_INVENTORY=~/ansible_hosts simple run: ansible all -m • Read More »