What have containerS GOTTEN US?
Vincent Batts @vbatts
$> finger $(whoami)
Login: vbatts Name: Vincent Batts
Directory: /home/vbatts Shell: /bin/bash
Such mail.
Plan:
OHMAN
$> id -Gn
devel opencontainers docker appc redhat golang slackwareContainers
History Lane
- Installing Distros
- DistroWatch anyone?
- LUGs
History Lane
- Monsterous, unique installations
- (we would never do this in production)
- ((totally did this in production))
History Lane
- rsync for backups
- store config in version control
- and have config management
- version control the config management
History Lane
- Virtual Machines!
- and snapshots
- rsync for backups
- store config in version control
- and have config management
- version control the config management
History Lane
- Containers!
- build files in version control
- image registries
- Virtual Machines!
- and snapshots
- rsync for backups
- store config in version control
- and have config management
- version control the config management
History Lane
- Orchestration!
- deployment configs
- Containers!
- build files in version control
- image registries
- Virtual Machines!
- and snapshots
- rsync for backups
- config management
- version control the config management
History Lane
Wash, Rinse, Repeat
Gotten us?
Fresh feels,
on doing the same things in a new way
Thinner,
but still bloated
Simpler,
yet more complicated
Portable,
while predictable
Possible without containers?
I reckon
Possible without containers?
(cite: the internet)
Gotten all of us?
Helping others?
Looking out for each other?
Cross pollinating?
exaggerated stress?
burnout?
Possible without containers?
Absolutely, and it takes everyone of us to recognize that others want stress-free happiness, just like you.
This is not
"winner takes all [the happiness]"
Possible without containers?
(cite: the internet)
Container Standards
Runtime Specifications
- Opencontainer Runtime-spec (github.com/opencontainers/runtime-spec)
- Started June 2015
- Presently at v1.0.0-rc5
- `runc` is the flagship. Other implementations like runv and oci-runtime-tools
Container Standards
Distribute Image Specifications
- Opencontainer image-spec (github.com/opencontainers/image-spec)
- Started April 2016
- Originated from Docker-1.10 and Registry v2 format
- Presently at v1.0.0-rc5
- Support from Amazon ElasticContainerRegistry (ECR), rkt, flatpak, skopeo, cri-o, containerd and more
- pull-requests opened for docker (moby/moby) and docker-registry
Container Standards
Cloud Native Computing Foundation (cncf.io)
- Kubernetes orchestration
- Prometheus monitoring
- gRPC, CoreDNS, Linkerd, OpenTracing, Fluentd
- newly added containerd and rkt
What's next?
Desktop applications will shape and mold (see flatpak.org, JessFraz efforts, even an AtomicWorkstation)
Get used to not having root privileges (see bubblewrap and bwrap-oci, and recently runc)
Get used to not having capabilities (see System Tap and a blog about this)
What's next?
Cloud Native application development (see CNCF)
Rather than only shoving "legacy" code in new boxes
Discoverable APIs (see OpenAPIs)
"Scheduled" functionality (see OpenShift and Kubernetes)
intercommunication (see gRPC)
event and metric driven services
What's next?
(Cite: the internet)
Respect Life Cycles