Important: This article was written by Github Copilot, while it's not entirely accurate, it's quite good to see what it ended up with.
The bpf verifier is a tool that can be used to check the correctness of eBPF programs. It is implemented in C and is used by the kernel. When the kernel is built with CONFIG_BPF_JIT, it does further optimization on the BPF programs.
To write a valid eBPF program you need to follow a few rules:
| Mute these words in your settings here: https://twitter.com/settings/muted_keywords | |
| ActivityTweet | |
| generic_activity_highlights | |
| generic_activity_momentsbreaking | |
| RankedOrganicTweet | |
| suggest_activity | |
| suggest_activity_feed | |
| suggest_activity_highlights | |
| suggest_activity_tweet |
| # REFERENCES: | |
| # - https://github.com/puckel/docker-airflow | |
| # - https://github.com/ImDarrenG/mesos-framework-dev/blob/master/Dockerfile | |
| # - https://github.com/Stibbons/docker-airflow-mesos | |
| # Wherever you store your mesos image built from Dockerfile-mesos | |
| FROM slicelife/mesos:1.4.0 as mesos | |
| FROM ubuntu:16.04 | |
| # Never prompts the user for choices on installation/configuration of packages | |
| ENV DEBIAN_FRONTEND noninteractive |
This will get you routable containers with IPs on your existing subnets, advertising to Consul. They will also be scalable and placed across a cluster of Swarm hosts. It's assumed that you are already running Consul, so if not, there are a ton of tutorials out there. It's also assumed you know how to install Docker and various Linux kernels.
Bonus: We add an autoscaling API called Orbiter (https://gianarb.it/blog/orbiter-the-swarm-autoscaler-moves).
So you have an existing environment. You use Consul for service discovery. Life is good. Containers are now a thing and you want to work them in without having to worry about overlay networking or reverse proxies. You also don't want to add extra latency (as some naysayers could use it as fuel to kill your hopes and dreams). Lastly, you don't have a lot of time to invest in a complex orchestration tool, such a
We are having troubles talking to Mesos DNS if our Marathon application / service has two ports.
We could use mesos consul https://hub.docker.com/r/ciscocloud/mesos-consul/ but that would require a consul cluster.
The following are instructions to install consul on dcos/mesos/coreos. This may not be the best way. Coreos does have a package manager (but we don't know how to use it). At a minimum we should script this with ansible. (We are not ansible experts either).
So far, I have been unable to get mesos-consul to work but consul is running on the mesos-masters and mesos-slaves in a special snowflake fashion.
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git clone https://gist.github.com/dd6f95398c1bdc9f1038.git vault
cd vault
docker-compose up -d
export VAULT_ADDR=http://192.168.99.100:8200
Initializing a vault:
vault init
| namespace :docker do | |
| desc "Run tasks in parallel using docker" | |
| task :test do | |
| forks = 4 | |
| begin | |
| # Start docker containers (serially, docker seems to have problems with concurrency) | |
| ports = {} | |
| forks.times do |i| | |
| # Start redis and get the mapped port | |
| `docker run -d -p 6379 -name redis#{i} yourdockeruser/redis` |
