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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.controller.athenz.impl;
import com.yahoo.athenz.zms.DomainList;
import com.yahoo.athenz.zms.ProviderResourceGroupRoles;
import com.yahoo.athenz.zms.Tenancy;
import com.yahoo.athenz.zms.TenantRoleAction;
import com.yahoo.athenz.zms.ZMSClient;
import com.yahoo.athenz.zms.ZMSClientException;
import com.yahoo.log.LogLevel;
import com.yahoo.vespa.athenz.api.AthenzDomain;
import com.yahoo.vespa.athenz.api.AthenzIdentity;
import com.yahoo.vespa.athenz.api.AthenzService;
import com.yahoo.vespa.hosted.controller.api.identifiers.ApplicationId;
import com.yahoo.vespa.hosted.controller.api.integration.athenz.ApplicationAction;
import com.yahoo.vespa.hosted.controller.api.integration.athenz.ZmsClient;
import com.yahoo.vespa.hosted.controller.api.integration.athenz.ZmsException;
import com.yahoo.vespa.hosted.controller.athenz.config.AthenzConfig;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.function.Supplier;
import java.util.logging.Logger;
import static java.util.stream.Collectors.toList;
/**
* @author bjorncs
*/
public class ZmsClientImpl implements ZmsClient {
private static final Logger log = Logger.getLogger(ZmsClientImpl.class.getName());
private final ZMSClient zmsClient;
private final AthenzService service;
ZmsClientImpl(ZMSClient zmsClient, AthenzConfig config) {
this.zmsClient = zmsClient;
this.service = new AthenzService(config.domain(), config.service().name());
}
@Override
public void createTenant(AthenzDomain tenantDomain) {
log("putTenancy(tenantDomain=%s, service=%s)", tenantDomain, service);
runOrThrow(() -> {
Tenancy tenancy = new Tenancy()
.setDomain(tenantDomain.getName())
.setService(service.getFullName())
.setResourceGroups(Collections.emptyList());
zmsClient.putTenancy(tenantDomain.getName(), service.getFullName(), /*auditref*/null, tenancy);
});
}
@Override
public void deleteTenant(AthenzDomain tenantDomain) {
log("deleteTenancy(tenantDomain=%s, service=%s)", tenantDomain, service);
runOrThrow(() -> zmsClient.deleteTenancy(tenantDomain.getName(), service.getFullName(), /*auditref*/null));
}
@Override
public void addApplication(AthenzDomain tenantDomain, ApplicationId applicationName) {
List<TenantRoleAction> tenantRoleActions = createTenantRoleActions();
log("putProviderResourceGroupRoles(" +
"tenantDomain=%s, providerDomain=%s, service=%s, resourceGroup=%s, roleActions=%s)",
tenantDomain, service.getDomain().getName(), service.getName(), applicationName, tenantRoleActions);
runOrThrow(() -> {
ProviderResourceGroupRoles resourceGroupRoles = new ProviderResourceGroupRoles()
.setDomain(service.getDomain().getName())
.setService(service.getName())
.setTenant(tenantDomain.getName())
.setResourceGroup(applicationName.id())
.setRoles(tenantRoleActions);
zmsClient.putProviderResourceGroupRoles(
tenantDomain.getName(), service.getDomain().getName(), service.getName(),
applicationName.id(), /*auditref*/null, resourceGroupRoles);
});
}
@Override
public void deleteApplication(AthenzDomain tenantDomain, ApplicationId applicationName) {
log("deleteProviderResourceGroupRoles(tenantDomain=%s, providerDomain=%s, service=%s, resourceGroup=%s)",
tenantDomain, service.getDomain().getName(), service.getName(), applicationName);
runOrThrow(() -> {
zmsClient.deleteProviderResourceGroupRoles(
tenantDomain.getName(), service.getDomain().getName(), service.getName(), applicationName.id(), /*auditref*/null);
});
}
@Override
public boolean hasApplicationAccess(
AthenzIdentity identity, ApplicationAction action, AthenzDomain tenantDomain, ApplicationId applicationName) {
return hasAccess(
action.name(), applicationResourceString(tenantDomain, applicationName), identity);
}
@Override
public boolean hasTenantAdminAccess(AthenzIdentity identity, AthenzDomain tenantDomain) {
return hasAccess(TenantAction._modify_.name(), tenantResourceString(tenantDomain), identity);
}
@Override
public boolean hasHostedOperatorAccess(AthenzIdentity identity) {
return getOrThrow(() -> hasAccess("modify", service.getDomain().getName() + ":hosted-vespa", identity));
}
/**
* Used when creating tenancies. As there are no tenancy policies at this point,
* we cannot use {@link #hasTenantAdminAccess(AthenzIdentity, AthenzDomain)}
*/
@Override
public boolean isDomainAdmin(AthenzIdentity identity, AthenzDomain domain) {
log("getMembership(domain=%s, role=%s, principal=%s)", domain, "admin", identity);
return getOrThrow(
() -> zmsClient.getMembership(domain.getName(), "admin", identity.getFullName()).getIsMember());
}
@Override
public List<AthenzDomain> getDomainList(String prefix) {
log.log(LogLevel.DEBUG, String.format("getDomainList(prefix=%s)", prefix));
return getOrThrow(
() -> {
DomainList domainList = zmsClient.getDomainList(
/*limit*/null, /*skip*/null, prefix, /*depth*/null, /*domain*/null,
/*productId*/ null, /*modifiedSince*/null);
return toAthenzDomains(domainList.getNames());
});
}
private static List<TenantRoleAction> createTenantRoleActions() {
return Arrays.stream(ApplicationAction.values())
.map(action -> new TenantRoleAction().setAction(action.name()).setRole(action.roleName))
.collect(toList());
}
private static List<AthenzDomain> toAthenzDomains(List<String> domains) {
return domains.stream().map(AthenzDomain::new).collect(toList());
}
private boolean hasAccess(String action, String resource, AthenzIdentity identity) {
log("getAccess(action=%s, resource=%s, principal=%s)", action, resource, identity);
return getOrThrow(
() -> zmsClient.getAccess(action, resource, /*trustDomain*/null, identity.getFullName())
.getGranted());
}
private static void log(String format, Object... args) {
log.log(LogLevel.DEBUG, String.format(format, args));
}
private static void runOrThrow(Runnable wrappedCode) {
try {
wrappedCode.run();
} catch (ZMSClientException e) {
logWarning(e);
throw new ZmsException(e.getCode(), e);
}
}
private static <T> T getOrThrow(Supplier<T> wrappedCode) {
try {
return wrappedCode.get();
} catch (ZMSClientException e) {
logWarning(e);
throw new ZmsException(e.getCode(), e);
}
}
private static void logWarning(ZMSClientException e) {
log.warning("Error from Athenz: " + e.getMessage());
}
private String resourceStringPrefix(AthenzDomain tenantDomain) {
return String.format("%s:service.%s.tenant.%s",
service.getDomain().getName(), service.getName(), tenantDomain.getName());
}
private String tenantResourceString(AthenzDomain tenantDomain) {
return resourceStringPrefix(tenantDomain) + ".wildcard";
}
private String applicationResourceString(AthenzDomain tenantDomain, ApplicationId applicationName) {
return resourceStringPrefix(tenantDomain) + "." + "res_group" + "." + applicationName.id() + ".wildcard";
}
private enum TenantAction {
// This is meant to match only the '*' action of the 'admin' role.
// If needed, we can replace it with 'create', 'delete' etc. later.
_modify_
}
}
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