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| 1 | +import { useEffect } from "react"; |
| 2 | +import { useAtomValue, useSetAtom } from "jotai"; |
| 3 | +import { kubernetesAtom } from "@/lib/kuviewAtom"; |
| 4 | +import { |
| 5 | + type ClusterRoleObject, |
| 6 | + type RoleObject, |
| 7 | + type UserGroupObject, |
| 8 | + type UserGroupSpec, |
| 9 | +} from "@/lib/kuview"; |
| 10 | +import { useKuview } from "@/hooks/useKuview"; |
| 11 | +import { Status, type Condition } from "@/lib/status"; |
| 12 | + |
| 13 | +// Create an virtual resource kuview.iwanhae.kr/v1/UserGroup |
| 14 | +export function SyncUserGroup() { |
| 15 | + const r = useKuview("rbac.authorization.k8s.io/v1/Role"); |
| 16 | + const rb = useKuview("rbac.authorization.k8s.io/v1/RoleBinding"); |
| 17 | + const cr = useKuview("rbac.authorization.k8s.io/v1/ClusterRole"); |
| 18 | + const crb = useKuview("rbac.authorization.k8s.io/v1/ClusterRoleBinding"); |
| 19 | + |
| 20 | + const kubernetes = useAtomValue(kubernetesAtom); |
| 21 | + |
| 22 | + const userGroupAtom = kubernetes["kuview.iwanhae.kr/v1/UserGroup"]; |
| 23 | + const setUserGroup = useSetAtom(userGroupAtom); |
| 24 | + |
| 25 | + useEffect(() => { |
| 26 | + const ug = new Map<string, UserGroupSpec>(); |
| 27 | + |
| 28 | + for (const binding of [...Object.values(rb), ...Object.values(crb)]) { |
| 29 | + // find the role |
| 30 | + let role: RoleObject | ClusterRoleObject | undefined = undefined; |
| 31 | + if (binding.roleRef.kind === "Role") { |
| 32 | + role = |
| 33 | + r[`${binding.metadata.namespace}/${binding.roleRef.name}`] ?? |
| 34 | + undefined; |
| 35 | + } else if (binding.roleRef.kind === "ClusterRole") { |
| 36 | + role = cr[binding.roleRef.name] ?? undefined; |
| 37 | + } |
| 38 | + |
| 39 | + if (!role) { |
| 40 | + continue; |
| 41 | + } |
| 42 | + |
| 43 | + // assign roles to subjects |
| 44 | + for (const subject of binding.subjects || []) { |
| 45 | + let name = subject.name; |
| 46 | + let s: UserGroupSpec; |
| 47 | + switch (subject.kind) { |
| 48 | + case "User": |
| 49 | + s = ug.get(name) ?? { bindings: [], roles: [], type: "User" }; |
| 50 | + ug.set(name, { |
| 51 | + bindings: [binding, ...s.bindings], |
| 52 | + roles: [role, ...s.roles], |
| 53 | + type: "User", |
| 54 | + }); |
| 55 | + break; |
| 56 | + case "ServiceAccount": |
| 57 | + name = `system:serviceaccount:${subject.namespace}:${subject.name}`; |
| 58 | + s = ug.get(name) ?? { bindings: [], roles: [], type: "User" }; |
| 59 | + ug.set(name, { |
| 60 | + bindings: [binding, ...s.bindings], |
| 61 | + roles: [role, ...s.roles], |
| 62 | + type: "User", |
| 63 | + }); |
| 64 | + break; |
| 65 | + case "Group": |
| 66 | + name = `@${name}`; |
| 67 | + s = ug.get(name) ?? { bindings: [], roles: [], type: "Group" }; |
| 68 | + ug.set(name, { |
| 69 | + bindings: [binding, ...s.bindings], |
| 70 | + roles: [role, ...s.roles], |
| 71 | + type: "Group", |
| 72 | + }); |
| 73 | + break; |
| 74 | + } |
| 75 | + } |
| 76 | + } |
| 77 | + |
| 78 | + const result: Record<string, UserGroupObject> = {}; |
| 79 | + |
| 80 | + for (const [name, spec] of ug) { |
| 81 | + result[name] = { |
| 82 | + kind: "UserGroup", |
| 83 | + apiVersion: "kuview.iwanhae.kr/v1", |
| 84 | + metadata: { |
| 85 | + name, |
| 86 | + uid: "", |
| 87 | + resourceVersion: "", |
| 88 | + creationTimestamp: "", |
| 89 | + }, |
| 90 | + spec, |
| 91 | + status: {}, |
| 92 | + kuviewExtra: { ...getStatus(spec.roles) }, |
| 93 | + }; |
| 94 | + } |
| 95 | + |
| 96 | + setUserGroup(result); |
| 97 | + }, [r, rb, cr, crb, setUserGroup]); |
| 98 | + |
| 99 | + return <></>; |
| 100 | +} |
| 101 | + |
| 102 | +function getStatus(roles: (RoleObject | ClusterRoleObject)[]): Condition { |
| 103 | + // Error: no roles |
| 104 | + if (roles.length === 0) { |
| 105 | + return { |
| 106 | + status: Status.Error, |
| 107 | + reason: "has no roles", |
| 108 | + }; |
| 109 | + } |
| 110 | + |
| 111 | + // Error: all roles have no rules |
| 112 | + if (roles.every((role) => (role.rules ?? []).length === 0)) { |
| 113 | + return { |
| 114 | + status: Status.Error, |
| 115 | + reason: `has ${roles.length} roles, but all of them have no rules`, |
| 116 | + }; |
| 117 | + } |
| 118 | + |
| 119 | + // Warn: if has ClusterRole named cluster-admin |
| 120 | + if (roles.some((role) => role.metadata.name === "cluster-admin")) { |
| 121 | + return { |
| 122 | + status: Status.Warning, |
| 123 | + reason: "has cluster-admin role, which is too powerful", |
| 124 | + }; |
| 125 | + } |
| 126 | + |
| 127 | + return { |
| 128 | + status: Status.Running, |
| 129 | + reason: `has ${roles.length} roles`, |
| 130 | + }; |
| 131 | +} |
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