Save a bunch of things

README.md

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+# Orchestration at scales
+
+Preparation:
+
+- Create VMs with docker-fundamentals script.
+
+- Put `ips.txt` file in `prepare-vms` directory.
+- Generate HTML file.
+- Open it in Chrome.
+- Transform to PDF.
+- Print it.
+
+- Make sure that you have SSH keys loaded (`ssh-add -l`).
+- Source `rc`.
+- Source `postprep.rc`.
+  (This will install a few extra packages, add entries to
+  /etc/hosts, generate SSH keys, and deploy them on all hosts.)
+
+- Set one group of machines for instructor's use.
+- Remove it from `ips.txt`.
+- Log into the first machine.
+- Git clone this repo.
+- Put up the web server.
+- Use cli53 to add an A record for `view.dckr.info`.
+
+
+# Description
+
+
+Chaos Monkey.
+
+App: pseudo-cryptocurrency?
+
+
+- datastore: redis
+- rng: microservice generating randomness
+- hasher: microservice computing hashes
+  (really just computing sha256sum)
+- worker: microservice using the previous two
+  to "mine" currency; a coin is a random string whose
+  hash starts with at least one zero; they are stored
+  in the datastore
+- webui: display statistics
+
+(Details: use map sha256->randorigin; also maintain
+a list of length 1000 containing timestamps;
+compute hash speed by CARD/(NOW()-oldest_ts))
+
+Initial worker has a bug, and takes only 4 first
+bytes of seed
+
+## Intro to the environment
+
+- SSH with password
+- SSH with keys
+- docker run blahblah
+- sudo
+- parallel-ssh example
+
+## Intro to the app
+
+## Deploy app on single machine
+
+- Docker Compose
+- frontend, backend, worker, datastore
+- check CPU usage with docker top; docker stats; top
+- cadvisor
+- introduce ambassador/balancer
+- scale appropriately
+- fix bug, redeploy
+
+## Clean up
+
+- Stop all containers
+
+## Get started with Swarm
+
+- Explain that machine would take care of this
+- Enable SSL certs everywhere
+- Create token
+- Start swarm master on node1
+- Start swarm agent everywhere
+- Point CLI to swarm master
+- Check docker info, docker version
+- Run a few hello worlds
+
+## Deploy with Swarm
+
+- compose up -> doesn't work because build
+- docker-compose-tag + push
+- docker-compose-pull 
+- replace each "linked-to" service by ambassador + single service
+  - workers: as is
+  - redis: single service + amba
+  - backend: scaled + lb; lb is haproxy with net:container
+- scale up and see results
+- check cadvisor
+
+## Deploy with Mesos
+
+
+
+
+# TODO
+
++ write pseudo miner
+- write deployment scripts
+- write chaos monkey
+- docker-compose-tag
+- docker-compose-pull
+- haproxy ambassador
+- docker-compose 1.3
+
+
+