Fix nxrm-ha helm chart to allow deploy nexus community edition

[mtroshyn]

Current version 89.1.0 of nxrm-ha from https://sonatype.github.io/helm3-charts/ has hardcode parameter for INSTALL4J_ADD_VM_PARAMS env var in file ./templates/statefulset.yaml

-Dnexus.licenseFile=${LICENSE_FILE}

This parameter doesn't allow to deploy nexus community addition, because each time you try to deploy nexus can't start and asks the licence file. Several users have already reported about problem with deployment here https://community.sonatype.com/t/how-to-deploy-sonatype-nexus-ce-to-k8s/14360/4

Without this parameter deployment of nexus community addition is successful.

My proposal is to update nxrm-ha helm template and make option -Dnexus.licenseFile=${LICENSE_FILE} configurable based on values. For example, in our setup we use unpacked helm package and made changes to ./templates/statefulset.yaml
original code

            - name: INSTALL4J_ADD_VM_PARAMS
          {{- if .Values.statefulset.clustered }}
              value: "{{ .Values.statefulset.container.env.install4jAddVmParams }} -Dnexus.licenseFile=${LICENSE_FILE} \
          -Dnexus.datastore.clustered.enabled={{ .Values.statefulset.clustered }} -Djava.util.prefs.userRoot=${NEXUS_DATA}/javaprefs \
          -Dnexus.datastore.nexus.jdbcUrl=jdbc:postgresql://${DB_HOST}:{{ .Values.statefulset.container.env.nexusDBPort }}/${DB_NAME}{{ .Values.statefulset.container.env.jdbcUrlParams }} \
          -Dnexus.datastore.nexus.username=${DB_USER} \
          -Dnexus.datastore.nexus.password=${DB_PASSWORD}"
          {{ else }}
              value: "{{ .Values.statefulset.container.env.install4jAddVmParams }} -Dnexus.licenseFile=${LICENSE_FILE} \
              -Dnexus.datastore.enabled=true -Djava.util.prefs.userRoot=${NEXUS_DATA}/javaprefs \
              -Dnexus.datastore.nexus.jdbcUrl=jdbc:postgresql://${DB_HOST}:{{ .Values.statefulset.container.env.nexusDBPort }}/${DB_NAME}{{ .Values.statefulset.container.env.jdbcUrlParams }} \
              -Dnexus.datastore.nexus.username=${DB_USER} \
              -Dnexus.datastore.nexus.password=${DB_PASSWORD}"
          {{ end }}

our workaround

          {{- $licenseConfigured := or .Values.secret.license.licenseSecret.enabled .Values.secret.license.existingSecret .Values.aws.secretmanager.enabled .Values.azure.keyvault.enabled .Values.externalsecrets.enabled }}
            - name: INSTALL4J_ADD_VM_PARAMS
          {{- if .Values.statefulset.clustered }}
          {{- if $licenseConfigured }}
              value: "{{ .Values.statefulset.container.env.install4jAddVmParams }} -Dnexus.licenseFile=${LICENSE_FILE} \
-Dnexus.datastore.clustered.enabled={{ .Values.statefulset.clustered }} -Djava.util.prefs.userRoot=${NEXUS_DATA}/javaprefs \
-Dnexus.datastore.nexus.jdbcUrl=jdbc:postgresql://${DB_HOST}:{{ .Values.statefulset.container.env.nexusDBPort }}/${DB_NAME}{{ .Values.statefulset.container.env.jdbcUrlParams }} \
-Dnexus.datastore.nexus.username=${DB_USER} \
-Dnexus.datastore.nexus.password=${DB_PASSWORD}"
          {{- else }}
              value: "{{ .Values.statefulset.container.env.install4jAddVmParams }} \
-Dnexus.datastore.clustered.enabled={{ .Values.statefulset.clustered }} -Djava.util.prefs.userRoot=${NEXUS_DATA}/javaprefs \
-Dnexus.datastore.nexus.jdbcUrl=jdbc:postgresql://${DB_HOST}:{{ .Values.statefulset.container.env.nexusDBPort }}/${DB_NAME}{{ .Values.statefulset.container.env.jdbcUrlParams }} \
-Dnexus.datastore.nexus.username=${DB_USER} \
-Dnexus.datastore.nexus.password=${DB_PASSWORD}"
          {{- end }}
          {{ else }}
          {{- if $licenseConfigured }}
              value: "{{ .Values.statefulset.container.env.install4jAddVmParams }} -Dnexus.licenseFile=${LICENSE_FILE} \
-Dnexus.datastore.enabled=true -Djava.util.prefs.userRoot=${NEXUS_DATA}/javaprefs \
-Dnexus.datastore.nexus.jdbcUrl=jdbc:postgresql://${DB_HOST}:{{ .Values.statefulset.container.env.nexusDBPort }}/${DB_NAME}{{ .Values.statefulset.container.env.jdbcUrlParams }} \
-Dnexus.datastore.nexus.username=${DB_USER} \
-Dnexus.datastore.nexus.password=${DB_PASSWORD}"
          {{- else }}
              value: "{{ .Values.statefulset.container.env.install4jAddVmParams }} \
-Dnexus.datastore.enabled=true -Djava.util.prefs.userRoot=${NEXUS_DATA}/javaprefs \
-Dnexus.datastore.nexus.jdbcUrl=jdbc:postgresql://${DB_HOST}:{{ .Values.statefulset.container.env.nexusDBPort }}/${DB_NAME}{{ .Values.statefulset.container.env.jdbcUrlParams }} \
-Dnexus.datastore.nexus.username=${DB_USER} \
-Dnexus.datastore.nexus.password=${DB_PASSWORD}"
          {{- end }}
          {{ end }}

We check if one of values .Values.secret.license.licenseSecret.enabled .Values.secret.license.existingSecret .Values.aws.secretmanager.enabled .Values.azure.keyvault.enabled .Values.externalsecrets.enabled is true and only in this case option -Dnexus.licenseFile=${LICENSE_FILE} will be added, in another case - no.
Please add this patch or similar to new chart version.