Node.js Workflow with
Minikube and Skaffold
@brandonphilips
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github.com/philips/node-kube
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What is a container?
Why use containers?
Why use Kubernetes?
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What is a container?
Why use containers?
Why use Kubernetes?
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Containers 101
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you
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you as a sw engineer
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your
with Ada.Text_IO;
procedure Hello_World is
use Ada.Text_IO;
begin
Put_Line("Hello, world!");
end;
#include
int main()
{
printf("Hello, world!\n");
}
package main
import "fmt"
func main() {
fmt.Println("Hello, world!")
}
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your container
image
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your /bin/node
/opt/app.js
/lib/libc
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your /bin/node
/opt/app.js
/lib/libc
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your
quay.io/me/node-app
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your
quay.io/me/node-app
sha256:d474e8c57737
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your
d474e8c57737625c
Signed By: Alice
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Demo w/ docker
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What is a container?
Why use containers?
Why use Kubernetes?
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you as an ops engineer
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your
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your
quay.io/me/node-app
x3
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your
quay.io/me/node-app
x3
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your
quay.io/you/search-app
x1
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your
mongodb/mongodb
x2
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Demo w/ minikube
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What is a container?
Why use containers?
Why use Kubernetes?
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Clustering
Server Botnets!
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100+ Per Person
At the Internet Giants
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100+ Per Person
Too many for manual placement
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100+ Per Person
Too many for manual placement
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100+ Per Person
Too many for manual placement
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$ while read host; ssh $host … < hosts
???
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$ while read host; ssh $host … < hosts
???
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$ while read host; ssh $host … < hosts
Problems: No monitoring, no state to recover
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No content
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$ kubectl run --replicas=3 quay.io/coreos/dex
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$ kubectl run --replicas=3 quay.io/coreos/dex
Solution: Monitoring, and state on computers
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$ kubectl run --replicas=3 quay.io/coreos/dex
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$ kubectl run --replicas=3 quay.io/coreos/dex
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$ kubectl run --replicas=3 quay.io/coreos/dex
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???
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???
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Simple cluster operations
Secure and Simple API
Friendly operational tools