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View Code? Open in Web Editor NEWDemo of k3d: Tool to run k3s (Kubernetes) in Docker
Home Page: https://k3d.io/
License: MIT License
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prabhumathiyalagan jesusfcr c20o20 davosian kierankelleher bsmr noushi andy521 dramirez-qb je2ryw itga violetvivirand sivasubramanian95 lixingweiyue thorkhan karim-pai yaowenqiang lynsei aishwarya-ramachandran lewismc fagan2888 sikeh jsburckhardt revovich michael-bowen-sc felipeg48 abderrazak-bouadma do4 vioan venescu mozhi-bateman galhardo-james tbowman-bah alexrogalskiy adeelahmad dokuboyejo chrisludwig gyurobenjamin piky neanderf alainlompo hilkinr dvgitit huangxiaofeng10047 i4o jforge rukbat nanox changsongyang tamahiko andybowu ryanyuechun maxdgt neroblack4life doytsujin tftlegal marcianomoreno kingphil mwoodpatrick righteouslabs timburlenk steveefemsck3d-demo's Issues
bug: the number of servers on reflected
Quick reminder from the great demo:
Expected behavior
3 servers spin up
Current behavior
The number of servers is not reflected: https://github.com/iwilltry42/k3d-demo/blob/main/assets/k3d-config.yaml#L4
Only 1 server spins up
[BUG] install-script: Not able to install new version of k3d
Hello, I was following the YouTube demo of beta release of k3d, but I am not able to get the beta version after using wget command.
root@testserver:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.3 LTS
Release: 18.04
Codename: bionic
root@ testserver:~# wget -q -O - https://raw.githubusercontent.com/rancher/k3d/master/install.sh | TAG=v3.0.0-beta.1 bash
Preparing to install k3d into /usr/local/bin
k3d installed into /usr/local/bin/k3d
Run 'k3d --help' to see what you can do with it.
root@ testserver:~# k3d version
k3d version v1.7.0
k3s version v1.17.3-k3s1
.,nbvcm,./
Deploy the sample app with helm step fails with "unable to build kubernetes objects" error on Mac
On a Macbook pro-2019 (Intel i9), while following steps in the demo, the Helm deployment step fails with the following error:
# Step: Deploy the sample app with helm
# Command: helm upgrade --install sample-app sample/conf/charts/sample-app --namespace demo --set app.image=sample-app:local [Enter]
$ helm upgrade --install sample-app sample/conf/charts/sample-app --namespace demo --set app.image=sample-app:local
Release "sample-app" does not exist. Installing it now.
Error: unable to build kubernetes objects from release manifest: unable to recognize "": no matches for kind "Ingress" in version "networking.k8s.io/v1"Note:
- I have k8s installed from source for other learning experiences
- I have k3s installed by default from k3d (v4.3.0)
- Docker and Kubernetes are always up to date
`kubectl get nodes` returning an error
Walking through the make demo scenario, when I get to the step kubectl get nodes I'm getting the following error:
Error from server (InternalError): an error on the server ("") has prevented the request from succeeding
OS: Fedora 32
Docker: Docker version 19.03.8, build afacb8b7f0
k3d: k3d version v3.0.0-beta.1
kubectl: Client Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.2", GitCommit:"52c56ce7a8272c798dbc29846288d7cd9fbae032", GitTreeState:"clean", BuildDate:"2020-04-16T11:56:40Z", GoVersion:"go1.13.9", Compiler:"gc", Platform:"linux/amd64"}
I can't figure out what I'm missing...
make demo-tilt fails because of helm/charts API version mismatch
Error:
ERROR:
<builtin>: in helm
Error: command ["helm" "template" "/home/rus/k8s/k3d-demo/sample/conf/charts/sample-app" "--name" "chart" "--set" "app.srcFrom=null"] failed.
error: exit status 1
stdout: ""
stderr: "Error: apiVersion 'v2' is not valid. The value must be \"v1\"\n"
apiVersion v2 can't be rendered in Helm v2
diff --git a/sample/conf/charts/sample-app/Chart.yaml b/sample/conf/charts/sample-app/Chart.yaml
index 3053ef6..927e6ba 100644
--- a/sample/conf/charts/sample-app/Chart.yaml
+++ b/sample/conf/charts/sample-app/Chart.yaml
@@ -1,4 +1,4 @@
-apiVersion: v2
+apiVersion: v1
name: sample-app
description: Helm Chart to deploy a ample-app
type: application
Fatal error
Hi, I got this error when trying out make demo. It occurred when I canceled make demo once to install helm (during the prompt for Step: Deploy the sample app with helm), then ran it again.
# ***** Section: Grow the Cluster *****
# Step: Add 2 agents to the cluster
# Command: k3d node create new-agent --cluster demo --role agent --replicas 2 [Enter]
$ k3d node create new-agent --cluster demo --role agent --replicas 2
INFO[0000] Adding 2 node(s) to the runtime local cluster 'demo'...
fatal error: concurrent map iteration and map write
goroutine 29 [running]:
github.com/k3d-io/k3d/v5/pkg/runtimes/docker.getNodeContainer({0xff2708, 0xc0000a8140}, 0xc0001c2000)
/home/runner/work/k3d/k3d/pkg/runtimes/docker/container.go:140 +0x2fe
github.com/k3d-io/k3d/v5/pkg/runtimes/docker.Docker.ReadFromNode({}, {0xff2708, 0xc0000a8140}, {0xe8cb4c, 0x16}, 0xc0001c2000)
/home/runner/work/k3d/k3d/pkg/runtimes/docker/util.go:160 +0x134
github.com/k3d-io/k3d/v5/pkg/client.GetLoadbalancerConfig({0xff2708, 0xc0000a8140}, {0x1001ef0?, 0x1636680?}, 0xc000610300)
/home/runner/work/k3d/k3d/pkg/client/loadbalancer.go:129 +0x336
github.com/k3d-io/k3d/v5/pkg/client.ClusterGet({0xff2708, 0xc0000a8140}, {0x1001ef0, 0x1636680}, 0xc000610300)
/home/runner/work/k3d/k3d/pkg/client/cluster.go:837 +0x7d4
github.com/k3d-io/k3d/v5/pkg/client.NodeAddToCluster({0xff2708, 0xc0000a8140}, {0x1001ef0?, 0x1636680?}, 0xc000502d00, 0xc000610300?, {0x1, 0x0, {0x0, 0x0, ...}, ...})
/home/runner/work/k3d/k3d/pkg/client/node.go:61 +0x9a
github.com/k3d-io/k3d/v5/pkg/client.NodeAddToClusterMulti.func1()
/home/runner/work/k3d/k3d/pkg/client/node.go:338 +0x57
golang.org/x/sync/errgroup.(*Group).Go.func1()
/home/runner/go/pkg/mod/golang.org/x/[email protected]/errgroup/errgroup.go:75 +0x64
created by golang.org/x/sync/errgroup.(*Group).Go
/home/runner/go/pkg/mod/golang.org/x/[email protected]/errgroup/errgroup.go:72 +0xa5
goroutine 1 [semacquire]:
sync.runtime_Semacquire(0xc000011068?)
/opt/hostedtoolcache/go/1.20.7/x64/src/runtime/sema.go:62 +0x27
sync.(*WaitGroup).Wait(0xe155a0?)
/opt/hostedtoolcache/go/1.20.7/x64/src/sync/waitgroup.go:116 +0x4b
golang.org/x/sync/errgroup.(*Group).Wait(0xc0006225c0)
/home/runner/go/pkg/mod/golang.org/x/[email protected]/errgroup/errgroup.go:53 +0x27
github.com/k3d-io/k3d/v5/pkg/client.NodeAddToClusterMulti({0xff2740, 0xc0000380f8}, {0x1001ef0?, 0x1636680}, {0xc000609140, 0x2, 0x0?}, 0xc000610300, {0x1, 0x0, ...})
/home/runner/work/k3d/k3d/pkg/client/node.go:341 +0x2ac
github.com/k3d-io/k3d/v5/cmd/node.NewCmdNodeCreate.func1(0xc0000e1500, {0xc0003d24d0?, 0x7?, 0x7?})
/home/runner/work/k3d/k3d/cmd/node/nodeCreate.go:58 +0x3ff
github.com/spf13/cobra.(*Command).execute(0xc0000e1500, {0xc0003d2460, 0x7, 0x7})
/home/runner/go/pkg/mod/github.com/spf13/[email protected]/command.go:944 +0x847
github.com/spf13/cobra.(*Command).ExecuteC(0xc000004600)
/home/runner/go/pkg/mod/github.com/spf13/[email protected]/command.go:1068 +0x3bd
github.com/spf13/cobra.(*Command).Execute(...)
/home/runner/go/pkg/mod/github.com/spf13/[email protected]/command.go:992
github.com/k3d-io/k3d/v5/cmd.Execute()
/home/runner/work/k3d/k3d/cmd/root.go:148 +0x176
main.main()
/home/runner/work/k3d/k3d/main.go:27 +0x17
goroutine 30 [runnable]:
reflect.name.name({0xcd1d39?})
/opt/hostedtoolcache/go/1.20.7/x64/src/reflect/type.go:527 +0xbf
reflect.(*structType).Field(0xdb5da0, 0x0)
/opt/hostedtoolcache/go/1.20.7/x64/src/reflect/type.go:1262 +0x9f
reflect.(*rtype).Field(0xffffffffffffffff?, 0x16?)
/opt/hostedtoolcache/go/1.20.7/x64/src/reflect/type.go:987 +0x6b
github.com/imdario/mergo.hasMergeableFields({0xdb5da0?, 0xc0006220d0?, 0xcc006842dd0?})
/home/runner/go/pkg/mod/github.com/imdario/[email protected]/merge.go:18 +0xee
github.com/imdario/mergo.deepMerge({0xdb5da0?, 0xc0006220d0?, 0xcc006842cc0?}, {0xdb5da0?, 0xc0001cc310?, 0x17?}, 0x3?, 0x5, 0xc0004133b0)
/home/runner/go/pkg/mod/github.com/imdario/[email protected]/merge.go:91 +0xfed
github.com/imdario/mergo.deepMerge({0xdb5e40?, 0xc0006220c0?, 0xcc006842cc0?}, {0xdb5e40?, 0xc0001cc300?, 0xd58120?}, 0x0?, 0x4, 0xc0004133b0)
/home/runner/go/pkg/mod/github.com/imdario/[email protected]/merge.go:93 +0x119e
github.com/imdario/mergo.deepMerge({0xdb95e0?, 0xc0006220c0?, 0xcc001de3298?}, {0xdb95e0?, 0xc0001cc300?, 0x18?}, 0x0?, 0x3, 0xc0004133b0)
/home/runner/go/pkg/mod/github.com/imdario/[email protected]/merge.go:93 +0x119e
github.com/imdario/mergo.deepMerge({0xd06860?, 0xc0001c2118?, 0xcc001de3210?}, {0xd06860?, 0xc000502458?, 0x98?}, 0xd2e9a0?, 0x2, 0xc0004133b0)
/home/runner/go/pkg/mod/github.com/imdario/[email protected]/merge.go:261 +0x7db
github.com/imdario/mergo.deepMerge({0xdb9ae0?, 0xc0001c2110?, 0xcc001de2000?}, {0xdb9ae0?, 0xc000502450?, 0xd2e9a0?}, 0xfe77f0?, 0x1, 0xc0004133b0)
/home/runner/go/pkg/mod/github.com/imdario/[email protected]/merge.go:93 +0x119e
github.com/imdario/mergo.deepMerge({0xe61d60?, 0xc0001c2000?, 0xd596e0?}, {0xe61d60?, 0xc000502340?, 0xc0000c6f00?}, 0xc000281600?, 0x0, 0xc0004133b0)
/home/runner/go/pkg/mod/github.com/imdario/[email protected]/merge.go:93 +0x119e
github.com/imdario/mergo.merge({0xd596e0, 0xc0001c2000}, {0xd596e0, 0xc000502340}, {0xc0004161d8, 0x1, 0x0?})
/home/runner/go/pkg/mod/github.com/imdario/[email protected]/merge.go:376 +0x32b
github.com/imdario/mergo.MergeWithOverwrite(...)
/home/runner/go/pkg/mod/github.com/imdario/[email protected]/merge.go:313
github.com/k3d-io/k3d/v5/pkg/client.ClusterGet({0xff2708, 0xc0000a8140}, {0x1001ef0, 0x1636680}, 0xc000610300)
/home/runner/work/k3d/k3d/pkg/client/cluster.go:815 +0x9fc
github.com/k3d-io/k3d/v5/pkg/client.NodeAddToCluster({0xff2708, 0xc0000a8140}, {0x1001ef0?, 0x1636680?}, 0xc000502ea0, 0xc000610300?, {0x1, 0x0, {0x0, 0x0, ...}, ...})
/home/runner/work/k3d/k3d/pkg/client/node.go:61 +0x9a
github.com/k3d-io/k3d/v5/pkg/client.NodeAddToClusterMulti.func1()
/home/runner/work/k3d/k3d/pkg/client/node.go:338 +0x57
golang.org/x/sync/errgroup.(*Group).Go.func1()
/home/runner/go/pkg/mod/golang.org/x/[email protected]/errgroup/errgroup.go:75 +0x64
created by golang.org/x/sync/errgroup.(*Group).Go
/home/runner/go/pkg/mod/golang.org/x/[email protected]/errgroup/errgroup.go:72 +0xa5
goroutine 72 [IO wait]:
internal/poll.runtime_pollWait(0x7f1b17a71c18, 0x72)
/opt/hostedtoolcache/go/1.20.7/x64/src/runtime/netpoll.go:306 +0x89
internal/poll.(*pollDesc).wait(0xc0004f8680?, 0xc000132000?, 0x0)
/opt/hostedtoolcache/go/1.20.7/x64/src/internal/poll/fd_poll_runtime.go:84 +0x32
internal/poll.(*pollDesc).waitRead(...)
/opt/hostedtoolcache/go/1.20.7/x64/src/internal/poll/fd_poll_runtime.go:89
internal/poll.(*FD).Read(0xc0004f8680, {0xc000132000, 0x1000, 0x1000})
/opt/hostedtoolcache/go/1.20.7/x64/src/internal/poll/fd_unix.go:167 +0x299
net.(*netFD).Read(0xc0004f8680, {0xc000132000?, 0x2?, 0xc000432b40?})
/opt/hostedtoolcache/go/1.20.7/x64/src/net/fd_posix.go:55 +0x29
net.(*conn).Read(0xc000012130, {0xc000132000?, 0x0?, 0x0?})
/opt/hostedtoolcache/go/1.20.7/x64/src/net/net.go:183 +0x45
net/http.(*persistConn).Read(0xc00064eea0, {0xc000132000?, 0x44b580?, 0xc0001e0ec8?})
/opt/hostedtoolcache/go/1.20.7/x64/src/net/http/transport.go:1943 +0x4e
bufio.(*Reader).fill(0xc0004f6c00)
/opt/hostedtoolcache/go/1.20.7/x64/src/bufio/bufio.go:106 +0xff
bufio.(*Reader).Peek(0xc0004f6c00, 0x1)
/opt/hostedtoolcache/go/1.20.7/x64/src/bufio/bufio.go:144 +0x5d
net/http.(*persistConn).readLoop(0xc00064eea0)
/opt/hostedtoolcache/go/1.20.7/x64/src/net/http/transport.go:2107 +0x1ac
created by net/http.(*Transport).dialConn
/opt/hostedtoolcache/go/1.20.7/x64/src/net/http/transport.go:1765 +0x16ea
goroutine 54 [runnable]:
sync.runtime_SemacquireMutex(0xc00018b000?, 0xe0?, 0xc0001ddd30?)
/opt/hostedtoolcache/go/1.20.7/x64/src/runtime/sema.go:77 +0x26
sync.(*Mutex).lockSlow(0xc0002452d8)
/opt/hostedtoolcache/go/1.20.7/x64/src/sync/mutex.go:171 +0x165
sync.(*Mutex).Lock(...)
/opt/hostedtoolcache/go/1.20.7/x64/src/sync/mutex.go:90
net/http.(*persistConn).readLoop(0xc000245200)
/opt/hostedtoolcache/go/1.20.7/x64/src/net/http/transport.go:2109 +0x1f0
created by net/http.(*Transport).dialConn
/opt/hostedtoolcache/go/1.20.7/x64/src/net/http/transport.go:1765 +0x16ea
goroutine 73 [select]:
net/http.(*persistConn).writeLoop(0xc00064eea0)
/opt/hostedtoolcache/go/1.20.7/x64/src/net/http/transport.go:2410 +0xf2
created by net/http.(*Transport).dialConn
/opt/hostedtoolcache/go/1.20.7/x64/src/net/http/transport.go:1766 +0x173d
load balancer does not seem to work on centos7
@iwilltry42 this repo is a very useful k3d demo, with many tips packed.
Thanks for sharing it !
It works flawlessly on my ubuntu 20.04 machine.
However I noticed that on a Centos7 VM the load balancer does not work.
- If you run
make demoand stop after the first stage (cluster creation) on Ubuntu I get:
> curl localhost:8080
404 page not found- On a Centos7 machine:
> curl localhost:8080
Empty reply from serverThe following steps do not change this output.
Inspecting container k3d-demo-serverlb logs and processes I could not pinpoint the problem.
At least pinging from one container to another using theirs name works:
#### inside k3d-demo-server-0
/ # ping k3d-demo-agent-0
PING k3d-demo-agent-0 (172.19.0.4): 56 data bytes
64 bytes from 172.19.0.4: seq=0 ttl=64 time=0.077 ms
64 bytes from 172.19.0.4: seq=1 ttl=64 time=0.080 msI wonder if this is a tiny config glitch, or some serious low level limitation...
What do you think ?
`make prep` destructive action without double confirm
The make prep command will delete containers / images / volumes, such destructive command should require user READ instructions and DOUBLE even TRIPLE confirm.
Default Script has issues on GitBash on Windows with the --volume pass
Using the
$ make demo
or
./scripts/lifecycle.sh
Will generate a command like this on Windows in GitBash;
Command: k3d cluster create demo --api-port 6550 --servers 1 --agents 3 --port 8080:80@loadbalancer --volume /c/Users/yourUid/k3d-demo/sample:/src@all --wait [Enter]
There doesn't appear to be a great work around but simply omitting the --volume seems to work, I guess then you would need to copy files manually to the docker images?
i.e. k3d cluster create demo --api-port 6550 --servers 1 --agents 3 --port 8080:80@loadbalancer --wait
The problem is that the paths do get converted to windows paths and the C:\Users confuses something :) Please advise.
$DRONE_BUILD_STARTED not guaranteed to be same between "steps:" and "services:" containers
After seeing a few Drone CI runs spin and then fail after an hour, I added a basic sanity check on the value of $DRONE_BUILD_STARTED (i.e. - echo sanity - $${DRONE_BUILD_STARTED})
In one run,
k3dsvc: sanity - 1669820814
test: sanity - 1669820815
While the k3d service is healthy, and the kubeconfig is in place, the "test" step is looking for the wrong filename indefinitely.
Suggested resolution: as these are ephemeral environments, we can use a hard-coded filename (e.g. kubeconfig.yaml).
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