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Allow specifying init_containers in Postgres CRD (#445) 

* Add support for init_containers
This commit is contained in:
Maxim Ivanov 2019-01-29 10:08:44 +00:00 committed by Sergey Dudoladov
parent 6f6a599c90
commit 3544cc90fa
29 changed files with 71 additions and 25 deletions
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26
docs/user.md
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@ -273,6 +273,32 @@ are always passed to sidecars:
The PostgreSQL volume is shared with sidecars and is mounted at `/home/postgres/pgdata`.
## InitContainers Support
Each cluster can specify arbitrary init containers to run. These containers can be
used to run custom actions before any normal and sidecar containers start.
An init container can be specified like this:
```yaml
apiVersion: "acid.zalan.do/v1"
kind: postgresql
metadata:
name: acid-minimal-cluster
spec:
...
init_containers:
- name: "container-name"
image: "company/image:tag"
env:
- name: "ENV_VAR_NAME"
value: "any-k8s-env-things"
```
`init_containers` accepts full `v1.Container` definition.
## Increase volume size
PostgreSQL operator supports statefulset volume resize if you're using the

4
manifests/complete-postgres-manifest.yaml
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@ -4,6 +4,10 @@ kind: postgresql
metadata:
name: acid-test-cluster
spec:
init_containers:
- name: date
image: busybox
command: [ "/bin/date" ]
teamId: "ACID"
volume:
size: 1Gi

1
pkg/apis/acid.zalan.do/v1/postgresql_type.go
View File

@ -51,6 +51,7 @@ type PostgresSpec struct {
Databases map[string]string `json:"databases,omitempty"`
Tolerations []v1.Toleration `json:"tolerations,omitempty"`
Sidecars []Sidecar `json:"sidecars,omitempty"`
InitContainers []v1.Container `json:"init_containers,omitempty"`
PodPriorityClassName string `json:"pod_priority_class_name,omitempty"`
ShmVolume *bool `json:"enableShmVolume,omitempty"`
}

14
pkg/apis/acid.zalan.do/v1/zz_generated.deepcopy.go
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@ -1,7 +1,7 @@
// +build !ignore_autogenerated
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
@ -442,6 +442,18 @@ func (in *PostgresSpec) DeepCopyInto(out *PostgresSpec) {
(*in)[i].DeepCopyInto(&(*out)[i])
}
}
if in.InitContainers != nil {
in, out := &in.InitContainers, &out.InitContainers
*out = make([]corev1.Container, len(*in))
for i := range *in {
(*in)[i].DeepCopyInto(&(*out)[i])
}
}
if in.ShmVolume != nil {
in, out := &in.ShmVolume, &out.ShmVolume
*out = new(bool)
**out = **in
}
return
}

3
pkg/cluster/k8sres.go
View File

@ -410,6 +410,7 @@ func generatePodTemplate(
namespace string,
labels labels.Set,
spiloContainer *v1.Container,
initContainers []v1.Container,
sidecarContainers []v1.Container,
tolerationsSpec *[]v1.Toleration,
nodeAffinity *v1.Affinity,
@ -428,6 +429,7 @@ func generatePodTemplate(
ServiceAccountName: podServiceAccountName,
TerminationGracePeriodSeconds: &terminateGracePeriodSeconds,
Containers: containers,
InitContainers: initContainers,
Tolerations: *tolerationsSpec,
}
@ -803,6 +805,7 @@ func (c *Cluster) generateStatefulSet(spec *acidv1.PostgresSpec) (*v1beta1.State
c.Namespace,
c.labelsSet(true),
spiloContainer,
spec.InitContainers,
sidecarContainers,
&tolerationSpec,
nodeAffinity(c.OpConfig.NodeReadinessLabel),

2
pkg/generated/clientset/versioned/clientset.go
View File

@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/clientset/versioned/doc.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/clientset/versioned/fake/clientset_generated.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/clientset/versioned/fake/doc.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/clientset/versioned/fake/register.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/clientset/versioned/scheme/doc.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/clientset/versioned/scheme/register.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/clientset/versioned/typed/acid.zalan.do/v1/acid.zalan.do_client.go
View File

@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/clientset/versioned/typed/acid.zalan.do/v1/doc.go
View File

@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/clientset/versioned/typed/acid.zalan.do/v1/fake/doc.go
View File

@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/clientset/versioned/typed/acid.zalan.do/v1/fake/fake_acid.zalan.do_client.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/clientset/versioned/typed/acid.zalan.do/v1/fake/fake_operatorconfiguration.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/clientset/versioned/typed/acid.zalan.do/v1/fake/fake_postgresql.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/clientset/versioned/typed/acid.zalan.do/v1/generated_expansion.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/clientset/versioned/typed/acid.zalan.do/v1/operatorconfiguration.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/clientset/versioned/typed/acid.zalan.do/v1/postgresql.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/informers/externalversions/acid.zalan.do/interface.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/informers/externalversions/acid.zalan.do/v1/interface.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/informers/externalversions/acid.zalan.do/v1/postgresql.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/informers/externalversions/factory.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/informers/externalversions/generic.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/informers/externalversions/internalinterfaces/factory_interfaces.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/listers/acid.zalan.do/v1/expansion_generated.go
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@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

2
pkg/generated/listers/acid.zalan.do/v1/postgresql.go
View File

@ -1,5 +1,5 @@
/*
Copyright 2018 Compose, Zalando SE
Copyright 2019 Compose, Zalando SE
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal