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tool.go
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tool.go
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// Copyright 2022 Namespace Labs Inc; All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
package toolcommon
import (
"context"
"encoding/json"
"fmt"
"path/filepath"
"strings"
corev1 "k8s.io/client-go/applyconfigurations/core/v1"
"namespacelabs.dev/foundation/framework/kubernetes/kubedef"
"namespacelabs.dev/foundation/framework/kubernetes/kubetool"
"namespacelabs.dev/foundation/framework/provisioning"
"namespacelabs.dev/foundation/internal/support/naming"
"namespacelabs.dev/foundation/schema"
"namespacelabs.dev/foundation/std/types"
"namespacelabs.dev/foundation/universe/db/maria"
)
const (
id = "init.mariadb.fn"
basePath = "/mariadb/init"
)
func mountConfigs(dbMap map[schema.PackageName][]*maria.Database, kr *kubetool.ContextualEnv, name string, focus string, out *provisioning.ApplyOutput) ([]string, error) {
args := []string{}
data := map[string]string{}
items := []*kubedef.SpecExtension_Volume_ConfigMap_Item{}
mountPath := filepath.Join(basePath, name)
for packageName, dbs := range dbMap {
for _, db := range dbs {
schemaPath := filepath.Join(packageName.String(), "schema", db.SchemaFile.Path)
schemaKey := naming.StableID(schemaPath)
data[schemaKey] = string(db.SchemaFile.Contents)
items = append(items, &kubedef.SpecExtension_Volume_ConfigMap_Item{
Key: schemaKey,
Path: schemaPath,
})
configPath := filepath.Join(packageName.String(), "config", db.Name)
configKey := naming.StableID(configPath)
config := &maria.Database{
Name: db.Name,
SchemaFile: &types.Resource{
Path: filepath.Join(mountPath, schemaPath),
},
HostedAt: db.HostedAt,
}
configBytes, err := json.Marshal(config)
if err != nil {
return nil, err
}
data[configKey] = string(configBytes)
items = append(items, &kubedef.SpecExtension_Volume_ConfigMap_Item{
Key: configKey,
Path: configPath,
})
args = append(args, filepath.Join(mountPath, configPath))
}
}
configMapName := fmt.Sprintf("%s.%s.%s", focus, name, id)
out.Invocations = append(out.Invocations, kubedef.Apply{
Description: "MariaDB Init ConfigMap",
SetNamespace: kr.CanSetNamespace,
Resource: corev1.ConfigMap(configMapName, kr.Namespace).WithData(data),
})
volumeName := strings.Replace(configMapName, ".", "-", -1)
out.Extensions = append(out.Extensions, kubedef.ExtendSpec{
With: &kubedef.SpecExtension{
Volume: []*kubedef.SpecExtension_Volume{{
Name: volumeName,
VolumeType: &kubedef.SpecExtension_Volume_ConfigMap_{
ConfigMap: &kubedef.SpecExtension_Volume_ConfigMap{
Name: configMapName,
Item: items,
},
},
}},
},
})
out.Extensions = append(out.Extensions, kubedef.ExtendContainer{
With: &kubedef.ContainerExtension{
VolumeMount: []*kubedef.ContainerExtension_VolumeMount{{
Name: volumeName,
ReadOnly: true,
MountPath: mountPath,
MountOnInit: true,
}},
},
})
return args, nil
}
func Apply(ctx context.Context, r provisioning.StackRequest, dbs map[schema.PackageName][]*maria.Database, name string, initArgs []string, out *provisioning.ApplyOutput) error {
if r.Env.Runtime != "kubernetes" {
return nil
}
kr, err := kubetool.FromRequest(r)
if err != nil {
return err
}
args, err := mountConfigs(dbs, kr, name, r.Focus.Server.Id, out)
if err != nil {
return err
}
initArgs = append(initArgs, args...)
out.ServerExtensions = append(out.ServerExtensions, &schema.ServerExtension{
ExtendContainer: []*schema.ContainerExtension{
{BinaryRef: schema.MakePackageSingleRef("namespacelabs.dev/foundation/universe/db/maria/internal/init"), Args: initArgs},
},
})
return nil
}
func Delete(r provisioning.StackRequest, name string, out *provisioning.DeleteOutput) error {
if r.Env.Runtime != "kubernetes" {
return nil
}
kr, err := kubetool.FromRequest(r)
if err != nil {
return err
}
out.Invocations = append(out.Invocations, kubedef.Delete{
Description: "MariaDB Init ConfigMap",
Resource: "configmaps",
SetNamespace: kr.CanSetNamespace,
Namespace: kr.Namespace,
Name: fmt.Sprintf("%s.%s", name, id),
})
return nil
}