Merge pull request #158 from openinfradev/add-tomcat-chart

add bitnami tomcat chart for appserving service

tomcat/.helmignore

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+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj

tomcat/Chart.lock

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+dependencies:
+- name: common
+  repository: https://charts.bitnami.com/bitnami
+  version: 2.2.1
+digest: sha256:6c67cfa9945bf608209d4e2ca8f17079fca4770907c7902d984187ab5b21811e
+generated: "2022-11-25T14:11:32.087181112Z"

tomcat/Chart.yaml

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+annotations:
+  category: ApplicationServer
+apiVersion: v2
+appVersion: 10.1.4
+dependencies:
+  - name: common
+    repository: https://charts.bitnami.com/bitnami
+    tags:
+      - bitnami-common
+    version: 2.x.x
+description: Apache Tomcat is an open-source web server designed to host and run Java-based web applications. It is a lightweight server with a good performance for applications running in production environments.
+engine: gotpl
+home: https://github.com/bitnami/charts/tree/main/bitnami/tomcat
+icon: https://bitnami.com/assets/stacks/tomcat/img/tomcat-stack-220x234.png
+keywords:
+  - tomcat
+  - java
+  - http
+  - web
+  - application server
+  - jsp
+maintainers:
+  - name: Bitnami
+    url: https://github.com/bitnami/charts
+name: tomcat
+sources:
+  - https://github.com/bitnami/containers/tree/main/bitnami/tomcat
+  - http://tomcat.apache.org
+version: 10.5.6

tomcat/templates/NOTES.txt

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+CHART NAME: {{ .Chart.Name }}
+CHART VERSION: {{ .Chart.Version }}
+APP VERSION: {{ .Chart.AppVersion }}
+
+** Please be patient while the chart is being deployed **
+
+{{- if .Values.ingress.enabled }}
+
+1. Get the Tomcat URL and associate its hostname to your cluster external IP:
+
+   export CLUSTER_IP=$(minikube ip) # On Minikube. Use: `kubectl cluster-info` on others K8s clusters
+   echo "Tomcat URL: http{{ if .Values.ingress.tls }}s{{ end }}://{{ .Values.ingress.hostname }}"
+   echo "$CLUSTER_IP  {{ .Values.ingress.hostname }}" | sudo tee -a /etc/hosts
+
+{{- else }}
+
+1. Get the Tomcat URL by running:
+
+{{- if contains "NodePort" .Values.service.type }}
+
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "common.names.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo "Tomcat URL:            http://$NODE_IP:$NODE_PORT"
+  echo "Tomcat Management URL: http://$NODE_IP:$NODE_PORT/manager"
+
+{{- else if contains "LoadBalancer" .Values.service.type }}
+
+  NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+        Watch the status with: 'kubectl get svc --namespace {{ .Release.Namespace }} -w {{ template "common.names.fullname" . }}'
+
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "common.names.fullname" . }} --template "{{ "{{ range (index .status.loadBalancer.ingress 0) }}{{ . }}{{ end }}" }}")
+  {{- $port:=.Values.service.ports.http | toString }}
+  echo "Tomcat URL:            http://$SERVICE_IP{{- if ne $port "80" }}:{{ .Values.service.ports.http }}{{ end }}/"
+  echo "Tomcat Management URL: http://$SERVICE_IP{{- if ne $port "80" }}:{{ .Values.service.ports.http }}{{ end }}/manager"
+
+{{- else if contains "ClusterIP"  .Values.service.type }}
+
+  kubectl port-forward --namespace {{ .Release.Namespace }} svc/{{ template "common.names.fullname" . }} 8080:{{ .Values.service.ports.http }} &
+  echo "Tomcat URL:            http://127.0.0.1:8080/"
+  echo "Tomcat Management URL: http://127.0.0.1:8080/manager"
+
+{{- end }}
+{{- end }}
+
+2. Login with the following credentials
+
+  echo Username: {{ .Values.tomcatUsername }}
+  echo Password: $(kubectl get secret --namespace {{ .Release.Namespace }} {{ template "common.names.fullname" . }} -o jsonpath="{.data.tomcat-password}" | base64 -d)
+
+{{- include "tomcat.checkRollingTags" . }}

tomcat/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+
+{{/*
+Return the proper Tomcat image name
+*/}}
+{{- define "tomcat.image" -}}
+{{ include "common.images.image" (dict "imageRoot" .Values.image "global" .Values.global) }}
+{{- end -}}
+
+{{/*
+Return the Tomcat ports map
+*/}}
+{{- define "tomcat.ports" -}}
+- port: {{ .Values.containerPorts.http }}
+  protocol: TCP
+{{- range .Values.containerExtraPorts }}
+- port: {{ include "common.tplvalues.render" (dict "value" .containerPort "context" $) }}
+  protocol: TCP
+{{- end }}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "tomcat.fullname" -}}
+{{- include "common.names.fullname" . -}}
+{{- end -}}
+
+{{/*
+Return the proper image name (for the init container volume-permissions image)
+*/}}
+{{- define "tomcat.volumePermissions.image" -}}
+{{ include "common.images.image" (dict "imageRoot" .Values.volumePermissions.image "global" .Values.global) }}
+{{- end -}}
+
+{{/*
+Return the proper Docker Image Registry Secret Names
+*/}}
+{{- define "tomcat.imagePullSecrets" -}}
+{{- include "common.images.pullSecrets" (dict "images" (list .Values.image .Values.volumePermissions.image .Values.metrics.jmx.image) "global" .Values.global) -}}
+{{- end -}}
+
+{{/*
+Check if there are rolling tags in the images
+*/}}
+{{- define "tomcat.checkRollingTags" -}}
+{{- include "common.warnings.rollingTag" .Values.image }}
+{{- include "common.warnings.rollingTag" .Values.volumePermissions.image }}
+{{- end -}}
+
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "tomcat.pvc" -}}
+{{- coalesce .Values.persistence.existingClaim (include "common.names.fullname" .) -}}
+{{- end -}}
+
+{{/*
+Return the proper CATALINA_OPTS value
+*/}}
+{{- define "tomcat.catalinaOpts" -}}
+{{- if .Values.metrics.jmx.enabled -}}
+{{- default "" (cat .Values.catalinaOpts .Values.metrics.jmx.catalinaOpts) | trim  -}}
+{{- else -}}
+{{- default "" .Values.catalinaOpts  | trim -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return the proper JMX exporter image name
+*/}}
+{{- define "tomcat.metrics.jmx.image" -}}
+{{- include "common.images.image" (dict "imageRoot" .Values.metrics.jmx.image "global" .Values.global) -}}
+{{- end -}}
+
+{{/*
+Return the tomcat jmx configuration configmap
+*/}}
+{{- define "tomcat.metrics.jmx.configmapName" -}}
+{{- if .Values.metrics.jmx.existingConfigmap -}}
+    {{- printf "%s" (tpl .Values.metrics.jmx.existingConfigmap $) -}}
+{{- else -}}
+    {{- printf "%s-jmx-configuration" (include "tomcat.fullname" .) -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Compile all warnings into a single message, and call fail.
+*/}}
+{{- define "tomcat.validateValues" -}}
+{{- $messages := list -}}
+{{- $messages := append $messages (include "tomcat.validateValues.jmxConfig" .) -}}
+{{- $messages := without $messages "" -}}
+{{- $message := join "\n" $messages -}}
+
+{{- if $message -}}
+{{- printf "\nVALUES VALIDATION:\n%s" $message | fail -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Check if jmx metrics is enabled, then either metrics.jmx.config or metrics.jmx.existingConfigmap must be set.
+*/}}
+{{- define "tomcat.validateValues.jmxConfig" -}}
+    {{- if and .Values.metrics.jmx.enabled (not .Values.metrics.jmx.config)  (not .Values.metrics.jmx.existingConfigmap) -}}
+tomcat: metrics.jmx.enabled
+    In order to enable JMX metrics, you also need to provide
+    the prometheus/jmx_exporter configuration or
+    provide an existing ConfigMap.
+  {{- end -}}
+{{- end -}}