License: MIT License
Helm must be installed to use the charts. Please refer to Helm's documentation to get started.
Once Helm is set up properly, add the repo as follows:
helm repo add itzg https://itzg.github.io/minecraft-server-charts/You can then run helm search repo itzg to see the charts.
helm install --name your-release itzg/minecraftAlso see artifact hub for a complete list.
Basically what the title says - even if minecraftServer.rcon.enabled is false when first deployed, the server.properties file still has enable-rcon set to true (at least with the multiarch image.)
This chart creates an emptyDir (or, if backup persistence is enabled, a PVC) mount at the location given by destDir. Kubernetes sets the filesystem permissions automatically so that tar backups can be written to this directory.
The destDir option is doing double duty; for rclone backups, it also specifies the location within the rclone bucket where backups will be uploaded.
When rclone is selected as the backup method, the backup tar file is temporarily written to disk before being uploaded. However, the file is written in the current working directory, which defaults to /. On some (all?) Kubernetes providers, the root directory is not writable to containers that have dropped privileges, so unless the container has been set to run as root, the temporary file cannot be written, and the backup fails.
There's a few options for fixes:
destDir; orrclone temporary files to destDir; and/orIt feels cleanest to decouple the two uses of destDir, but doing so could also be a breaking change for people who have rclone backup already working via a root-privileged container.
Howdy, Is Curseforge support possible? One of the main issues of the normal container is that the modpack file needs to be downloaded and preloaded with TYPE=CURSEFORGE and CF_SERVER_MOD within the container's filesystem.
Perhaps, part of the template is to generate a job or cronjob that could wget a file specified by the helm chart, The container should continue to fallback untill the modpack zip is downloaded.
Any additional input? Still rather new to k8s and helm charts in general.
StatefulSet seems more suitable than a Deployment for this type of workload, what are your thoughts?
These charts are now bundled on TrueNAS TrueCharts catalog, such as https://truecharts.org/apps/games/minecraft-bedrock/. It would be nice to include a reverse link to reference those catalog entries from this repo
The values.yaml says to have a comma separated list of usernames, but the docker container seems to expect true/false with whiltelist in whitelist.json. The chart implies it will turn on whitelisting and generate this json file, but that doesn't seem to be the case. I would suggest either to update the docs to indicate how to turn on whitelisting and mention the json file needs to be filled out or to make the chart write the whitelist.json on start with an init container or the like.
I have a couple of use cases that require me to inject extra environment variables which require the use of valueFrom.
This could be implemented into the chart by exposing an additional variable that accepts the full deployment spec.template.spec.containers[].env syntax. This would only require a minor release.
someNewExtraEnvVariable:
- name: NORMAL_VAR
value: "foobar"
- name: HOST_IP
valueFrom:
fieldRef:
fieldPath: status.hostIPAlternatively, the less messy but slightly less user-friendly option would be to allow the full use of the syntax with the extraEnv variable, this would likely be a breaking change unless someone can think up the logic to allow this kind of syntax:
extraEnv:
USE_AIKARS_FLAGS: "true"
HOST_IP:
valueFrom:
fieldRef:
fieldPath: status.hostIPThoughts?
We've got a use case that requires 3+ ports
@billimek any ideas why it is complaining about the chart repo not being available?
https://github.com/itzg/minecraft-server-charts/runs/1336548983?check_suite_focus=true#step:7:5
Thank you for this HELM chart, it's working great for me..
I'd like to run a Spigot server, and can't seem to make it work, and am looking for a little help.
I adjusted the values.yaml file with the following:
version: SPIGOT
spigotDownloadUrl; https://cdn.getbukkit.org/spigot/spigot-1.16.4.jar
doesn't download and hence I only get crashloopbackoffs.
Any docs around this would be great! I'll check your Dockerfile in the mean time :)
Thanks again for the work on this!
Thanks again for this Chart, working great.
The kubectl cp backup example for backing it up, but will the reverse work for a restore?
Thanks
https://hub.docker.com/r/itzg/mc-backup offers instructions on how to configure mc-backup within Kubernetes.
Since this is the official home of the itzg minecraft chart, it would benefit users to have this backup option integrated and configurable via helm chart flags.
The version of minecraft-proxy in Helm Repo is only up to 2.0.1.
In the description of the chart on artifact hub it says that:
The
itzg/minecraftimage stores the saved games and mods under /data.
This confused me because I didn't even know that kubernetes had writable directories inside containers.
How would I go about accessing data to configure mods?
Will look into this further, just putting this here for documentation. Getting this error...
Error: Deployment in version "v1" cannot be handled as a Deployment: v1.Deployment.Spec: v1.DeploymentSpec.Template: v1.PodTemplateSpec.Spec: v1.PodSpec.Containers: []v1.Container: v1.Container.Env: []v1.EnvVar: v1.EnvVar.Value: ReadString: expects " or n, but found 2, error found in #10 byte of ...|,"value":25565}],"im|..., bigger context ...|RY","value":"true"},{"name":"QUERY_PORT","value":25565}],"image":"itzg/minecraft-server:latest","ima|...
With the following values file...
image: itzg/minecraft-server
imageTag: latest
imagePullSecret: ""
minecraftServer:
# This must be overridden, since we can't accept this for the user.
eula: "TRUE"
# One of: LATEST, SNAPSHOT, or a specific version (ie: "1.7.9").
version: "LATEST"
# This can be one of "VANILLA", "FORGE", "SPIGOT", "BUKKIT", "PAPER", "FTBA", "SPONGEVANILLA"
type: "PAPER"
# If type is set to FORGE, this sets the version; this is ignored if forgeInstallerUrl is set
forgeVersion:
# If type is set to SPONGEVANILLA, this sets the version
spongeVersion:
# If type is set to FORGE, this sets the URL to download the Forge installer
forgeInstallerUrl:
# If type is set to BUKKIT, this sets the URL to download the Bukkit package
bukkitDownloadUrl:
# If type is set to SPIGOT, this sets the URL to download the Spigot package
spigotDownloadUrl:
# If type is set to PAPER, this sets the URL to download the PaperSpigot package
paperDownloadUrl:
# If type is set to FTB, this sets the server mod to run. You can also provide the URL to download the FTB package
ftbServerMod:
# Set to true if running Feed The Beast and get an error like "unable to launch forgemodloader"
ftbLegacyJavaFixer: false
# One of: peaceful, easy, normal, and hard
difficulty: hard
# A comma-separated list of player names to whitelist.
whitelist:
# A comma-separated list of player names who should be admins.
ops: "nctiggy"
# A server icon URL for server listings. Auto-scaled and transcoded.
icon:
# Max connected players.
maxPlayers: 30
# This sets the maximum possible size in blocks, expressed as a radius, that the world border can obtain.
maxWorldSize: 10000000
# Allows players to travel to the Nether.
allowNether: true
# Allows server to announce when a player gets an achievement.
announcePlayerAchievements: true
# Enables command blocks.
enableCommandBlock: true
# If true, players will always join in the default gameMode even if they were previously set to something else.
forcegameMode: true
# Defines whether structures (such as villages) will be generated.
generateStructures: true
# If set to true, players will be set to spectator mode if they die.
hardcore: false
# The maximum height in which building is allowed.
maxBuildHeight: 256
# The maximum number of milliseconds a single tick may take before the server watchdog stops the server with the message. -1 disables this entirely.
maxTickTime: 60000
# Determines if animals will be able to spawn.
spawnAnimals: true
# Determines if monsters will be spawned.
spawnMonsters: true
# Determines if villagers will be spawned.
spawnNPCs: true
# Max view distance (in chunks).
viewDistance: 10
# Define this if you want a specific map generation seed.
levelSeed:
# One of: creative, survival, adventure, spectator
gameMode: survival
# Message of the Day
motd: "Welcome to Minecraft on Kubernetes!"
# If true, enable player-vs-player damage.
pvp: true
# One of: DEFAULT, FLAT, LARGEBIOMES, AMPLIFIED, CUSTOMIZED
levelType: DEFAULT
# When levelType == FLAT or CUSTOMIZED, this can be used to further customize map generation.
# ref: https://hub.docker.com/r/itzg/minecraft-server/
generatorSettings:
worldSaveName: world
# If set, this URL will be downloaded at startup and used as a starting point
downloadWorldUrl:
# force re-download of server file
forceReDownload: false
# If set, the modpack at this URL will be downloaded at startup
downloadModpackUrl:
# If true, old versions of downloaded mods will be replaced with new ones from downloadModpackUrl
removeOldMods: false
# Check accounts against Minecraft account service.
onlineMode: false
# If you adjust this, you may need to adjust resources.requests above to match.
memory: 4096M
# General JVM options to be passed to the Minecraft server invocation
jvmOpts: ""
# Options like -X that need to proceed general JVM options
jvmXXOpts: ""
serviceAnnotations: {}
serviceType: ClusterIP
## Set the port used if the serviceType is NodePort
# nodePort:
loadBalancerIP:
# loadBalancerSourceRanges: []
## Set the externalTrafficPolicy in the Service to either Cluster or Local
# externalTrafficPolicy: Cluster
externalIPs:
rcon:
# If you enable this, make SURE to change your password below.
enabled: true
port: 25575
password: "CHANGEME!"
serviceType: LoadBalancer
loadBalancerIP:
# loadBalancerSourceRanges: []
## Set the externalTrafficPolicy in the Service to either Cluster or Local
# externalTrafficPolicy: Cluster
query:
# If you enable this, your server will be "published" to Gamespy
enabled: true
port: 25565
persistence:
## minecraft data Persistent Volume Storage Class
## If defined, storageClassName: <storageClass>
## If set to "-", storageClassName: "", which disables dynamic provisioning
## If undefined (the default) or set to null, no storageClassName spec is
## set, choosing the default provisioner. (gp2 on AWS, standard on
## GKE, AWS & OpenStack)
##
# storageClass: "-"
dataDir:
# Set this to false if you don't care to persist state between restarts.
enabled: true
existingClaim: minecraft-data
Is the lack of license intentional on this repo?
When trying to use the Minecraft chart with the type set to FTBA there is no place to set the FTB_MODPACK_ID which caused the container to fail with
[init] Running as uid=1000 gid=1000 with /data as 'drwxrwxrwx 2 0 0 4096 Mar 21 22:02 /data'
[init] Resolved version given LATEST into 1.18.2 and major version 1.18
[init] Resolving type given FTBA
[init] ERROR FTB_MODPACK_ID is required with TYPE=FTB
There is an option for minecraftServer.ftbServerMod but that doesn't set the FTB_MODPACK_ID environment variable. You can set the variable in the extraEnv section and everything works fine, but it isn't obvious.
Feature proposal
Add the functionality to configure a list (list of downloadUrls, or even Spigot Plugin names, tbd) of Pugins, that are downloaded and stored to the correct directory before starting the minecraft server.
Input appreciated
I currently don't know how the URLs for downloading plugin jars on spigot can be used, as the URLs are not leading to the file directly. I thought of a solution based on this: https://github.com/InventivetalentDev/SpigetDownloader
I will look into this this evening and try to provide a PR.
So, is setting it to 0 fine or not?
I am trying to add extraVolumes to attach an nfs share. When I have volumes and volumeMounts in extraVolumes, I am getting a null string in the output. I did a few tests and it looks like the issue is the helm chart - specifically the area that is adding volumes. When looping through extraVolumes, each volumeMount element will show as null.
This should be a simple fix - only loop and add volumes from extraVolumes.
values.yaml
minecraftServer:
serviceType: LoadBalancer
eula: true
type: "CURSEFORGE"
cfServerMod: "/modpacks/All+the+Mods+6+-+To+the+Sky+-1.2.0.zip"
persistence:
storageClass: cstor-csi-disk
dataDir:
enabled: true
Size: 5Gi
extraVolumes:
- volumeMounts:
- name: modpacks
mountPath: "/modpacks"
readOnly: true
- volumes:
- name: modpacks
nfs:
server: nfs-server
path: "/nfs/modpacks"Running helm template --debug
helm template minecraft --values minecraft_values.yaml minecraft-server-charts/minecraft --debug > template.out
install.go:178: [debug] Original chart version: ""
install.go:195: [debug] CHART PATH: /root/.cache/helm/repository/minecraft-3.8.2.tgz
Error: YAML parse error on minecraft/templates/deployment.yaml: error converting YAML to JSON: yaml: line 145: could not find expected ':'
helm.go:84: [debug] error converting YAML to JSON: yaml: line 145: could not find expected ':'
YAML parse error on minecraft/templates/deployment.yamlout.yaml
volumeMounts:
- name: datadir
mountPath: /data
- name: backupdir
mountPath: /backups
readOnly: true
- mountPath: /modpacks
name: modpacks
readOnly: true
volumes:
- name: datadir
persistentVolumeClaim:
claimName: minecraft-1-minecraft-datadir
- name: backupdir
emptyDir: {}
null
- name: modpacks
nfs:
path: /nfs/modpacks
server: nfs-servervalues.yaml
minecraftServer:
serviceType: LoadBalancer
eula: true
type: "CURSEFORGE"
cfServerMod: "/modpacks/All+the+Mods+6+-+To+the+Sky+-1.2.0.zip"
persistence:
storageClass: cstor-csi-disk
dataDir:
enabled: true
Size: 5Gi
extraVolumes:
- volumes:
- name: modpacks
nfs:
server: nfs-server
path: "/nfs/modpacks"out.yaml
volumeMounts:
- name: datadir
mountPath: /data
- name: backupdir
mountPath: /backups
readOnly: true
volumes:
- name: datadir
persistentVolumeClaim:
claimName: minecraft-minecraft-datadir
- name: backupdir
emptyDir: {}
- name: modpacks
nfs:
path: /nfs/modpacks
server: nfs-serverI petition that we should release a new chart version with an updated app version 1.16.1 is out, and we are still defaulting to 1.14.4. I am happy to submit a PR, but before I do, I wanted to see if there was some reason why we were still defaulting to 1.14.4.
The helm chart does not have any ENABLE_AUTOPAUSE option though the base image supports it. Am I missing something?
I'm having an issue starting a new server for FTB Sky Odyssey
K8s version: 1.20.4:
Host version: Ubuntu 20.04
chmod: changing permissions of '/data': Operation not permitted
[init] Running as uid=1000 gid=1000 with /data as 'drwxrwxrwx 8 0 0 4096 Apr 15 01:13 /data'
[init] Resolved version given 1.12.2 into 1.12.2
[init] Resolving type given FTBA
[init] FTB modpack ID 8, version ID 142 is ready to go
[init] server.properties already created, skipping
[init] Updating ops
[init] Checking for JSON files.
[init] Setting initial memory to 8192M and max to 8192M
[init] Starting the Minecraft server...
A problem occurred running the Server launcher.java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:70)
at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:34)
Caused by: java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap')
at net.minecraft.launchwrapper.Launch.<init>(Launch.java:34)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
... 6 more
2021-04-15T01:18:00.696Z WARN mc-server-runner sub-process failed {"exitCode": 1}
2021-04-15T01:18:00.697Z INFO mc-server-runner Done
I don't know why its listing that /data permissions error, as the directory has 777 permissions and seems to have populated it just fine. Either way, the server spits out that error and get stuck in CrashLoopBackOff.
Values.yml
# ref: https://hub.docker.com/r/itzg/minecraft-server/
image: itzg/minecraft-server
imageTag: multiarch
strategyType: Recreate
resources:
requests:
memory: 8192Mi
cpu: 500m
livenessProbe: {}
readinessProbe: {}
extraEnv:
FTB_MODPACK_ID: 8
FTB_MODPACK_VERSION_ID: 142
minecraftServer:
eula: "TRUE"
# One of: LATEST, SNAPSHOT, or a specific version (ie: "1.7.9").
version: "1.12.2"
# This can be one of "VANILLA", "FORGE", "SPIGOT", "BUKKIT", "PAPER", "FTB", "SPONGEVANILLA"
type: "FTBA"
# One of: peaceful, easy, normal, and hard
difficulty: normal
# A comma-separated list of player names to whitelist.
whitelist:
# A comma-separated list of player names who should be admins.
ops: cclloyd
# A server icon URL for server listings. Auto-scaled and transcoded.
icon:
maxPlayers: 10
maxWorldSize: 10000000
allowNether: true
announcePlayerAchievements: true
enableCommandBlock: true
forcegameMode: false
generateStructures: true
hardcore: false
maxBuildHeight: 256
# The maximum number of milliseconds a single tick may take before the server watchdog stops the server with the message. -1 disables this entirely.
maxTickTime: 120000
spawnAnimals: true
spawnMonsters: true
spawnNPCs: true
# Max view distance (in chunks).
viewDistance: 18
# One of: creative, survival, adventure, spectator
gameMode: survival
# Message of the Day
motd: "Sky Odyssey for Casual Try-Hards"
pvp: true
# One of: DEFAULT, FLAT, LARGEBIOMES, AMPLIFIED, CUSTOMIZED
levelType: voidworld
worldSaveName: world
# If you adjust this, you may need to adjust resources.requests above to match.
memory: 8192M
# General JVM options to be passed to the Minecraft server invocation
jvmOpts: ""
# Options like -X that need to proceed general JVM options
jvmXXOpts: ""
rcon:
enabled: false
query:
enabled: false
serviceAnnotations:
metallb.universe.tf/address-pool: default
serviceType: LoadBalancer
persistence:
storageClass: "nfsssd"
dataDir:
enabled: true
Size: 8Gi
I'm getting the error in the title occasionally when trying to connect to the minecraft server I created using this chart. The server runs fine mostly. The cpu usage is lower than I would expect though, but it runs fine except that people have trouble connecting occasionally.
I am running the deployment on a single node microk8s server that I have port forwarded to a nodeport service. I have 80Mbps internet (though that doesn't seem to matter since I get the error on the same network), and the server has 16 threads with a max frequency of 3.7GHz (though it seems to run around 1.6GHz typically with only 2 mincraft servers on it)
Please add .Values.persistence.annotations. This is useful for setting helm flags to not delete the PVC when uninstalling.
There's a bunch of common items in each of the charts, would make things a little neater if we had a library chart.
Trying to deploy a server using type=ftba so I can run https://feed-the-beast.com/modpack/ftb_presents_direwolf20_1_12 and i'm getting:
chmod: changing permissions of '/data': Operation not permitted [init] Running as uid=1000 gid=1000 with /data as 'drwxrwsr-x 3 0 2000 4096 Jan 12 00:15 /data' [init] Resolved version given 1.12.2 into 1.12.2 [init] Resolving type given FTBA [init] ERROR FTB_MODPACK_ID is required with TYPE=FTB
I tried running it with command line arguments but got the same error. What should I do here?
Specs are a Digital Ocean kubernetes cluster and it just hosts these deployments and here's my server settings in the values file:
# This must be overridden, since we can't accept this for the user.
eula: "FALSE"
# One of: LATEST, SNAPSHOT, or a specific version (ie: "1.7.9").
version: "1.12.2"
# This can be one of "VANILLA", "FORGE", "SPIGOT", "BUKKIT", "PAPER", "FTBA", "SPONGEVANILLA"
type: "FTBA"
# If type is set to FORGE, this sets the version; this is ignored if forgeInstallerUrl is set
forgeVersion:
# If type is set to SPONGEVANILLA, this sets the version
spongeVersion:
# If type is set to FORGE, this sets the URL to download the Forge installer
forgeInstallerUrl:
# If type is set to BUKKIT, this sets the URL to download the Bukkit package
bukkitDownloadUrl:
# If type is set to SPIGOT, this sets the URL to download the Spigot package
spigotDownloadUrl:
# If type is set to PAPER, this sets the URL to download the PaperSpigot package
paperDownloadUrl:
# If type is set to FTB, this sets the server mod to run. You can also provide the URL to download the FTB package
ftbServerMod
# Set to true if running Feed The Beast and get an error like "unable to launch forgemodloader"
ftbLegacyJavaFixer: false
# One of: peaceful, easy, normal, and hard
difficulty: hard
# A comma-separated list of player names to whitelist.
whitelist:
# A comma-separated list of player names who should be admins.
ops: shazzberry
# A server icon URL for server listings. Auto-scaled and transcoded.
icon:
# Max connected players.
maxPlayers: 20
# This sets the maximum possible size in blocks, expressed as a radius, that the world border can obtain.
maxWorldSize: 10000
# Allows players to travel to the Nether.
allowNether: true
# Allows server to announce when a player gets an achievement.
announcePlayerAchievements: true
# Enables command blocks.
enableCommandBlock: true
# If true, players will always join in the default gameMode even if they were previously set to something else.
forcegameMode: false
# Defines whether structures (such as villages) will be generated.
generateStructures: true
# If set to true, players will be set to spectator mode if they die.
hardcore: false
# The maximum height in which building is allowed.
maxBuildHeight: 256
# The maximum number of milliseconds a single tick may take before the server watchdog stops the server with the message. -1 disables this entirely.
maxTickTime: 60000
# Determines if animals will be able to spawn.
spawnAnimals: true
# Determines if monsters will be spawned.
spawnMonsters: true
# Determines if villagers will be spawned.
spawnNPCs: true
# Max view distance (in chunks).
viewDistance: 10
# Define this if you want a specific map generation seed.
levelSeed:
# One of: creative, survival, adventure, spectator
gameMode: survival
# Message of the Day
motd: "Welcome to Minecraft on Kubernetes by Shazzberry!"
# If true, enable player-vs-player damage.
pvp: true
# One of: DEFAULT, FLAT, LARGEBIOMES, AMPLIFIED, CUSTOMIZED
levelType: BIOMESOP
# When levelType == FLAT or CUSTOMIZED, this can be used to further customize map generation.
# ref: https://hub.docker.com/r/itzg/minecraft-server/
generatorSettings: "https://www.curseforge.com/minecraft/mc-mods/biomes-o-plenty/download/2988999"
worldSaveName: world
# If set, this URL will be downloaded at startup and used as a starting point
downloadWorldUrl:
# force re-download of server file
forceReDownload: false
# If set, the modpack at this URL will be downloaded at startup
downloadModpackUrl:
# If true, old versions of downloaded mods will be replaced with new ones from downloadModpackUrl
removeOldMods: true
# Check accounts against Minecraft account service.
onlineMode: true
# If you adjust this, you may need to adjust resources.requests above to match.
memory: 4096M
# General JVM options to be passed to the Minecraft server invocation
jvmOpts: ""
# Options like -X that need to proceed general JVM options
jvmXXOpts: ""
serviceAnnotations: {}
serviceType: LoadBalancer
## Set the port used if the serviceType is NodePort
# nodePort:
loadBalancerIP:
# loadBalancerSourceRanges: []
## Set the externalTrafficPolicy in the Service to either Cluster or Local
# externalTrafficPolicy: Cluster
externalIPs:`
Hello, thanks for this project.
Quick question: How can I import a backup done with itzg/mc-backup ?
I guess one answer would be to fill a PVC, then use it as an existing claim.
I'd like to be able to define an initContainer in your charts so that we can use itzg/mc-backup image to GET a backup from wherever, then fill a shared PVC with the main container so that it would start with an eixsting world.
Would that be an interesting feature for your charts ?
I'm thinking about adding an inline initContainer like so: https://github.com/bitnami/charts/blob/master/bitnami/postgresql/templates/statefulset.yaml#L132-L134
&
https://github.com/bitnami/charts/blob/master/bitnami/postgresql/values.yaml#L483-L488
What do you think ?
in the latest chart v 3.8.0 that uses latest image Image: itzg/minecraft-server:latest, I can see MODE: CREATIVE but it doesn't take effect. When i connect to the world it is survival.
Any idea?
Sorry I tried following the instructions of:
Get the IP address of your Minecraft server by running these commands in the
same shell:
export POD_NAME=$(kubectl get pods \
--namespace minecraft \
-l "component=minecraft-minecraft" \
-o jsonpath="{.items[0].metadata.name}")
kubectl port-forward $POD_NAME 25565:25565
echo "Point your Minecraft client at 127.0.0.1:22565"
when trying to do the first command I get an error:
error: error executing jsonpath "{.items[0].metadata.name}": Error executing template: array index out of bounds: index 0, length 0. Printing more information for debugging the template:
template was:
{.items[0].metadata.name}
object given to jsonpath engine was:
map[string]interface {}{"apiVersion":"v1", "items":[]interface {}{}, "kind":"List", "metadata":map[string]interface {}{"resourceVersion":"", "selfLink":""}}
Sorry I am new to kubernetes and Bash, but for the "export POD_NAME" do we replace the POD_NAME with the pod name from:
kubectl get pods -n minecraft
minecraft-minecraft-668c498d5b-59n6d
I tried replacing the POD Name from what I got from the namespace, but got:
bash: export: minecraft-minecraft-668c498d5b-59n6d=': not a valid identifier`
I am executing helm from my computer and not on the kubernetes master. The cluster is a raspberry pi cluster
Only thing I would suggest is adding a start probe, some modpacks can take up for 10 mins to boot on init install.
Thank you!
/close
Originally posted by @Blackphidora in #44 (comment)
as per the title, minecraft.svc misses a piece, that is contained in the other services
annotations:
{{ toYaml .Values.minecraftServer.serviceAnnotations | indent 4 }}
I would like to write a chart for your rcon-web-admin container, just wanted to ask if it's ok if I'll contribute it here instead of doing it separately.
When using mcbackup, the backup container fails to start with:
level=fatal msg="Failed to run sub-command" error="fork/exec /usr/bin/backup: operation not permitted".
My Helm values:
mcbackup:
enabled: true
persistence:
annotations:
nfs.io/storage-path: minecraft-backups
storageClass: deimos-nfs
backupDir:
enabled: true
Size: 5Gi
I checked and I have the following permissions set for the backups directory:
drwxrwxrwx 1 1000 2000 6 Jan 12 05:55 backups
I have not been able to get the backup container to run unless I make the runAsUser root:
securityContext:
runAsUser: 0
Is there perhaps another way? Or should the Helm chart allow us to set the run as user as root?
I assume the issue is in entrypoint-demoter that tries to change the user which runs the backup command.
setCredentials(uid, gid, command)
The liveness/readiness probes could be fully configurable, we'd like the option of using the mc-health wrapper for example
In the use case where we want to expose the server to the public, I think Kubernetes Ingress would be better than exposing the service as NodePort, for domain name, pathes etc .. ?
Hey there,
Setting the server motd in a values.yml file doesn't override the Docker image motd:
...
minecraftServer:
...
motd: "Test"
...
Installation command: helm install -f values.yml --namespace test --create-namespace minecraft itzg/minecraft
Result:
The documentation in the values.yaml under persistence use the boilerplate text
minecraft-server-charts/charts/minecraft/values.yaml
Lines 271 to 285 in 30076e5
Which indicates that to use a storageClass you should use storageClassName. This is inline with many other charts and the value in a PVC definition. However the template uses storageClass instead of storageClassName. I didn't find this until I looked at the template itself and the deployment used a local-path instead of my specified storageclass
minecraft-server-charts/charts/minecraft/templates/datadir-pvc.yaml
Lines 26 to 30 in 30076e5
Either the documentation in README.md and the values.yaml should be updated, or better the general standard should be followed and use storageClassName
For the minecraft java edition chart, the whitelist var appears to only add users to the whitelist, not actually turn the whitelist on.
The bedrock edition chart appears to have separate whitelist and whitelist-users vars.
Thanks so much, this is a really useful project, It has transformed the ease of management of (java) Minecraft servers for me.
However, quite a bit of background in K8S and Helm is required to take advantage of it. I propose that a the project provides a script for a simple CLI for deploying and managing servers.
I have a fully functional project which I'm happy to contribute here if you think appropriate. See the last section of the README for details of my CLI script. (I also include simple instructions for getting a cluster up and running at home)
Bluemap is like Dynmap and is a new project that seems to be much lighter on the resources. I've been using it for local testing and it's been great. Would a PR be welcomed in the coming weeks to get this added to the chart in the way DynMap is?
I'm trying to set some env variables to use with the multiarch image of minecraft, but helm is spitting an error when trying to deploy.
extraEnv:
FTB_MODPACK_ID: "35"
Gives me the error
v1.Container.Env: []v1.EnvVar: v1.EnvVar.Value: ReadString: expects " or n, but found 3, error found in #10 byte of ...|,"value":35}],"image|..., bigger context ...|TS","value":""},{"name":"FT
B_MODPACK_ID","value":35}],"image":"itzg/minecraft-server:multiarch","ima|...
Helm version: version.BuildInfo{Version:"v3.2.3", GitCommit:"8f832046e258e2cb800894579b1b3b50c2d83492", GitTreeState:"clean", GoVersion:"go1.13.12"}
Chart version: 2.0.2
App version: 1.14.4
An rclone config file contains data that should be kept secret, such as API keys for storage backends. Currently, the supported way to set the rclone config file contents is to put these contents into the values for a release. The contents will then be stored in a ConfigMap, which is not a secure place to put secrets.
It's currently possible to override this behaviour with a safer approach, if you set up the volume mounts using extraVolumes and create the secret manually. Here's what I'm using:
extraVolumes:
- volumeMounts:
- name: real-rclone-config
mountPath: /config/rclone
volumes
- name: real-rclone-config
secret:
secretName: my-rclone-config-secret
However, it's probably not a good idea for the chart/documentation to be encouraging users to use an unsafe configuration. The ConfigMap-based approach should be deprecated or transparently replaced with a Secret-based approach. This chart should also allow users to specify an existing secret, similarly to how the RCON password is handled; this is especially useful for GitOps-style workflows (e.g. Flux) where secrets have to be created separately from Helm release inputs.
I'm trying to get dynmap to come through with this chart and I'm trying to figure out which way it should be handled. I can see a specific dynmap: true flag that does the things or something more generic like extraPorts that pastes anything inside into the deployment and service yaml. I can see value in the former because it is easy for people to add dynmap then and the latter because it's easier to select what ports you may need and how to expose them.
Thoughts?
Currently the minecraft chart allows valueFrom in extraEnv, this functionality would also be useful in minecraft-proxy.
Change values to:
rcon:
enabled: TRUE
and try deploying. Kubernetes throws this error
Error: UPGRADE FAILED: YAML parse error on minecraft/templates/rcon-svc.yaml: error converting YAML to JSON: yaml: line 6: did not find expected key
what i do
helm upgrade --install minecraft charts/minecraft --namespace minecraft --create-namespace --set minecraftServer.eula=true,persistence.dataDir.enabled=true,minecraftServer.serviceType=NodePort
what happend
$ kubectl -n minecraft get pods
NAME READY STATUS RESTARTS AGE
minecraft-minecraft-79bc8f8d79-tjmcg 0/1 CrashLoopBackOff 5 (20s ago) 5m20s
the error logs
$ kubectl -n minecraft logs -f minecraft-minecraft-79bc8f8d79-tjmcg
chmod: changing permissions of '/data': Operation not permitted
[init] Running as uid=1000 gid=1000 with /data as 'drwxrwsrwx 1 0 2000 104 Aug 7 15:38 /data'
[init] Resolved version given LATEST into 1.19.2 and major version 1.19
[init] Resolving type given VANILLA
[init] server.properties already created, skipping
[init] Checking for JSON files.
[init] Setting initial memory to 1024M and max to 1024M
[init] Starting the Minecraft server...
Error: Invalid or corrupt jarfile minecraft_server.1.19.2.jar
2022-08-07T15:39:24.684Z WARN mc-server-runner Minecraft server process failed {"exitCode": 1}
2022-08-07T15:39:24.684Z INFO mc-server-runner Done
The minecraft chart accepts a parameter mcbackup.pruneBackupsDays. However, as can be seen from this code search, it doesn't actually map that to the PRUNE_BACKUPS_DAYS env var for the mc-backup container.
As a workaround, users can pass the env var manually:
spec:
values:
extraEnv:
PRUNE_BACKUPS_DAYS: "0" # disable backup pruning
Im working with java version
I installed the server with the helm chart, added player usernames to the ops and whitelist fields, like this:
whitelist: User1,User2,User3,User4,klucsik
ops: User1,User2,User3,User4,klucsik
overrideServerProperties: true
The server is freshly installed, its in offline mode, but I got rejected with the klucsik username.
[15:09:13] [Server thread/INFO]: Disconnecting com.mojang.authlib.GameProfile@6b639c5c[id=09cfa1dc-dd17-3c85-bb06-5e391a0f199e,name=klucsik,properties={},legacy=false] (/192.168.100.201:38299): You are not white-listed on this server!
Is it possible to use whitelist/ops in offline mode?
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