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Add /etc/hosts alias support #827

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22a464a
Pull runtime-component-operator@host-alias
kabicin Dec 4, 2025
cff299a
Pull open-liberty-operator@host-alias
kabicin Dec 4, 2025
1d1c80d
Implement .spec.hostAliases
kabicin Dec 4, 2025
c5380ed
Set pointer to host aliases
kabicin Dec 5, 2025
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8 changes: 8 additions & 0 deletions api/v1/webspherelibertyapplication_types.go
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Original file line number Diff line number Diff line change
Expand Up @@ -185,6 +185,10 @@ type WebSphereLibertyApplicationSpec struct {
// DNS settings for the application pod.
// +operator-sdk:csv:customresourcedefinitions:order=36,type=spec,displayName="DNS"
DNS *WebSphereLibertyApplicationDNS `json:"dns,omitempty"`

// The list of hosts and IPs that will be inejcted into the application pod's hosts file
// +operator-sdk:csv:customresourcedefinitions:order=37,type=spec,displayName="Host Aliases"
HostAliases *[]corev1.HostAlias `json:"hostAliases,omitempty"`
}

// Defines the DNS
Expand Down Expand Up @@ -1417,6 +1421,10 @@ func (d *WebSphereLibertyApplicationDNS) GetConfig() *corev1.PodDNSConfig {
return d.PodDNSConfig
}

func (cr *WebSphereLibertyApplication) GetHostAliases() *[]corev1.HostAlias {
return cr.Spec.HostAliases
}

// Initialize sets default values
func (cr *WebSphereLibertyApplication) Initialize() {
if cr.Spec.PullPolicy == nil {
Expand Down
11 changes: 11 additions & 0 deletions api/v1/zz_generated.deepcopy.go
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6 changes: 5 additions & 1 deletion bundle/manifests/ibm-websphere-liberty.clusterserviceversion.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,7 @@ metadata:
capabilities: Auto Pilot
categories: Application Runtime
containerImage: icr.io/cpopen/websphere-liberty-operator:daily
createdAt: "2025-12-03T04:52:57Z"
createdAt: "2025-12-04T21:43:47Z"
description: Deploy and manage containerized Liberty applications
features.operators.openshift.io/disconnected: "true"
olm.skipRange: '>=1.0.0 <1.5.2'
Expand Down Expand Up @@ -496,6 +496,10 @@ spec:
path: affinity.nodeAffinity
x-descriptors:
- urn:alm:descriptor:com.tectonic.ui:nodeAffinity
- description: The list of hosts and IPs that will be inejcted into the application
pod's hosts file
displayName: Host Aliases
path: hostAliases
- description: Controls the nodes the pod are scheduled to run on, based on
labels on the pods that are already running on the node.
displayName: Pod Affinity
Expand Down
21 changes: 21 additions & 0 deletions bundle/manifests/liberty.websphere.ibm.com_webspherelibertyapplications.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -1986,6 +1986,27 @@ spec:
description: Expose the application externally via a Route, a Knative
Route or an Ingress resource.
type: boolean
hostAliases:
description: The list of hosts and IPs that will be inejcted into
the application pod's hosts file
items:
description: |-
HostAlias holds the mapping between IP and hostnames that will be injected as an entry in the
pod's hosts file.
properties:
hostnames:
description: Hostnames for the above IP address.
items:
type: string
type: array
x-kubernetes-list-type: atomic
ip:
description: IP address of the host file entry.
type: string
required:
- ip
type: object
type: array
initContainers:
description: List of containers to run before other containers in
a pod.
Expand Down
21 changes: 21 additions & 0 deletions config/crd/bases/liberty.websphere.ibm.com_webspherelibertyapplications.yaml
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Expand Up @@ -1982,6 +1982,27 @@ spec:
description: Expose the application externally via a Route, a Knative
Route or an Ingress resource.
type: boolean
hostAliases:
description: The list of hosts and IPs that will be inejcted into
the application pod's hosts file
items:
description: |-
HostAlias holds the mapping between IP and hostnames that will be injected as an entry in the
pod's hosts file.
properties:
hostnames:
description: Hostnames for the above IP address.
items:
type: string
type: array
x-kubernetes-list-type: atomic
ip:
description: IP address of the host file entry.
type: string
required:
- ip
type: object
type: array
initContainers:
description: List of containers to run before other containers in
a pod.
Expand Down
4 changes: 4 additions & 0 deletions config/manifests/bases/ibm-websphere-liberty.clusterserviceversion.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -432,6 +432,10 @@ spec:
path: affinity.nodeAffinity
x-descriptors:
- urn:alm:descriptor:com.tectonic.ui:nodeAffinity
- description: The list of hosts and IPs that will be inejcted into the application
pod's hosts file
displayName: Host Aliases
path: hostAliases
- description: Controls the nodes the pod are scheduled to run on, based on
labels on the pods that are already running on the node.
displayName: Pod Affinity
Expand Down
4 changes: 2 additions & 2 deletions go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -3,8 +3,8 @@ module github.com/WASdev/websphere-liberty-operator
go 1.25

require (
github.com/OpenLiberty/open-liberty-operator v0.8.1-0.20251124214343-4fee1b0d8d1e
github.com/application-stacks/runtime-component-operator v1.0.0-20220602-0850.0.20251120112423-05f65c81aa36
github.com/OpenLiberty/open-liberty-operator v0.8.1-0.20251205192201-a970b41cd059
github.com/application-stacks/runtime-component-operator v1.0.0-20220602-0850.0.20251205191742-7d2acc4b2262
github.com/cert-manager/cert-manager v1.16.5
github.com/go-logr/logr v1.4.3
github.com/openshift/api v0.0.0-20250710004639-926605d3338b
Expand Down
8 changes: 8 additions & 0 deletions go.sum
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Expand Up @@ -4,10 +4,18 @@ github.com/MakeNowJust/heredoc v1.0.0 h1:cXCdzVdstXyiTqTvfqk9SDHpKNjxuom+DOlyEeQ
github.com/MakeNowJust/heredoc v1.0.0/go.mod h1:mG5amYoWBHf8vpLOuehzbGGw0EHxpZZ6lCpQ4fNJ8LE=
github.com/OpenLiberty/open-liberty-operator v0.8.1-0.20251124214343-4fee1b0d8d1e h1:7pCncY3KcsAge1E1E9tYo1ZM2bcfsg7dJ4XLKraVmkI=
github.com/OpenLiberty/open-liberty-operator v0.8.1-0.20251124214343-4fee1b0d8d1e/go.mod h1:ghwA2Fvfq6YphR93lp8vKEJ7mLYT1+sEvI6re16Kn0c=
github.com/OpenLiberty/open-liberty-operator v0.8.1-0.20251204214137-5ca60f4cd9b2 h1:ilDDB59Pg5LbvCJie1ngYlA5b5E2rgvXUrqqxOj3Yxw=
github.com/OpenLiberty/open-liberty-operator v0.8.1-0.20251204214137-5ca60f4cd9b2/go.mod h1:EhcP2pLDj4DYAfmIkEbr58G8TWoMjjiGnym1SRWPjEo=
github.com/OpenLiberty/open-liberty-operator v0.8.1-0.20251205192201-a970b41cd059 h1:gOlnFOcC6kwV91hoUhYERYLF6o+pZd048WZgMvK05vc=
github.com/OpenLiberty/open-liberty-operator v0.8.1-0.20251205192201-a970b41cd059/go.mod h1:NSTbyXbAcZws1HiAaShAnJRhAkZeowXXXGZ6008GyRk=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/application-stacks/runtime-component-operator v1.0.0-20220602-0850.0.20251120112423-05f65c81aa36 h1:fweyU4TX3vSrbWecLy6FYjIgnoybPdoJbOiZsoV+iDw=
github.com/application-stacks/runtime-component-operator v1.0.0-20220602-0850.0.20251120112423-05f65c81aa36/go.mod h1:Hs5AbE9J+rLM34IAc75X7dtxnrzFg2AvG1XYLcX/ApU=
github.com/application-stacks/runtime-component-operator v1.0.0-20220602-0850.0.20251204180254-1ccb32f60589 h1:oURgG664at9aK0yhgarnQVWwo7Sw9uGjnoN9LsA9b2Y=
github.com/application-stacks/runtime-component-operator v1.0.0-20220602-0850.0.20251204180254-1ccb32f60589/go.mod h1:Hs5AbE9J+rLM34IAc75X7dtxnrzFg2AvG1XYLcX/ApU=
github.com/application-stacks/runtime-component-operator v1.0.0-20220602-0850.0.20251205191742-7d2acc4b2262 h1:EIG09vyeKaj4v3WjOvc+xRvvmeo4OLyWyOyYACT+oEE=
github.com/application-stacks/runtime-component-operator v1.0.0-20220602-0850.0.20251205191742-7d2acc4b2262/go.mod h1:Hs5AbE9J+rLM34IAc75X7dtxnrzFg2AvG1XYLcX/ApU=
github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5 h1:0CwZNZbxp69SHPdPJAN/hZIm0C4OItdklCFmMRWYpio=
github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
Expand Down
21 changes: 21 additions & 0 deletions internal/deploy/kubectl/websphereliberty-app-crd.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -1985,6 +1985,27 @@ spec:
description: Expose the application externally via a Route, a Knative
Route or an Ingress resource.
type: boolean
hostAliases:
description: The list of hosts and IPs that will be inejcted into
the application pod's hosts file
items:
description: |-
HostAlias holds the mapping between IP and hostnames that will be injected as an entry in the
pod's hosts file.
properties:
hostnames:
description: Hostnames for the above IP address.
items:
type: string
type: array
x-kubernetes-list-type: atomic
ip:
description: IP address of the host file entry.
type: string
required:
- ip
type: object
type: array
initContainers:
description: List of containers to run before other containers in
a pod.
Expand Down
21 changes: 21 additions & 0 deletions internal/deploy/kustomize/daily/base/websphere-liberty-crd.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -1985,6 +1985,27 @@ spec:
description: Expose the application externally via a Route, a Knative
Route or an Ingress resource.
type: boolean
hostAliases:
description: The list of hosts and IPs that will be inejcted into
the application pod's hosts file
items:
description: |-
HostAlias holds the mapping between IP and hostnames that will be injected as an entry in the
pod's hosts file.
properties:
hostnames:
description: Hostnames for the above IP address.
items:
type: string
type: array
x-kubernetes-list-type: atomic
ip:
description: IP address of the host file entry.
type: string
required:
- ip
type: object
type: array
initContainers:
description: List of containers to run before other containers in
a pod.
Expand Down