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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.controller.api.integration.athenz;
import com.yahoo.config.provision.TenantName;
import com.yahoo.vespa.athenz.api.AthenzDomain;
import com.yahoo.vespa.athenz.api.AthenzGroup;
import com.yahoo.vespa.athenz.api.AthenzIdentity;
import com.yahoo.vespa.athenz.api.AthenzRole;
import com.yahoo.vespa.athenz.api.AthenzUser;
import com.yahoo.vespa.athenz.client.zms.ZmsClient;
import java.time.Instant;
import java.util.Collection;
import java.util.Map;
import java.util.Optional;
import java.util.stream.Collectors;
public class AthenzAccessControlService implements AccessControlService {
private static final String ALLOWED_OPERATOR_GROUPNAME = "vespa-team";
private static final String DATAPLANE_ACCESS_ROLENAME = "operator-data-plane";
private final String TENANT_DOMAIN_PREFIX = "vespa.tenant.";
private final ZmsClient zmsClient;
private final AthenzRole dataPlaneAccessRole;
private final AthenzGroup vespaTeam;
private final ZmsClient vespaZmsClient; //TODO: Merge ZMS clients
public AthenzAccessControlService(ZmsClient zmsClient, AthenzDomain domain, ZmsClient vespaZmsClient) {
this.zmsClient = zmsClient;
this.vespaZmsClient = vespaZmsClient;
this.dataPlaneAccessRole = new AthenzRole(domain, DATAPLANE_ACCESS_ROLENAME);
this.vespaTeam = new AthenzGroup(domain, ALLOWED_OPERATOR_GROUPNAME);
}
@Override
public boolean approveDataPlaneAccess(AthenzUser user, Instant expiry) {
// Can only approve team members, other members must be manually approved
if(!isVespaTeamMember(user)) {
throw new IllegalArgumentException(String.format("User %s requires manual approval, please contact Vespa team", user.getName()));
}
Map<AthenzIdentity, String> users = zmsClient.listPendingRoleApprovals(dataPlaneAccessRole);
if (users.containsKey(user)) {
zmsClient.approvePendingRoleMembership(dataPlaneAccessRole, user, expiry, Optional.empty());
return true;
}
return false;
}
@Override
// Return list of approved members (users, excluding services) of data plane role
public Collection<AthenzUser> listMembers() {
return zmsClient.listMembers(dataPlaneAccessRole)
.stream().filter(AthenzUser.class::isInstance)
.map(AthenzUser.class::cast)
.collect(Collectors.toList());
}
/**
* @return Whether the ssh access role has any pending role membership requests
*/
public boolean hasPendingAccessRequests(TenantName tenantName) {
var role = sshRole(tenantName);
var pendingApprovals = vespaZmsClient.listPendingRoleApprovals(role);
return pendingApprovals.containsKey(vespaTeam);
}
/**
* @return true if access has been granted - false if already member
*/
public boolean approveSshAccess(TenantName tenantName, Instant expiry) {
var role = sshRole(tenantName);
if (vespaZmsClient.getMembership(role, vespaTeam))
return false;
if (!hasPendingAccessRequests(tenantName)) {
vespaZmsClient.addRoleMember(role, vespaTeam, Optional.empty());
}
// TODO: Pass along auth0 credentials
vespaZmsClient.approvePendingRoleMembership(role, vespaTeam, expiry, Optional.empty());
return true;
}
/**
* @return true if access has been requested - false if already member
*/
public boolean requestSshAccess(TenantName tenantName) {
var role = sshRole(tenantName);
if (vespaZmsClient.getMembership(role, vespaTeam))
return false;
vespaZmsClient.addRoleMember(role, vespaTeam, Optional.empty());
return true;
}
private AthenzRole sshRole(TenantName tenantName) {
return new AthenzRole(tenantDomain(tenantName), "ssh_access");
}
private AthenzDomain tenantDomain(TenantName tenantName) {
return new AthenzDomain(TENANT_DOMAIN_PREFIX + tenantName.value());
}
public boolean isVespaTeamMember(AthenzUser user) {
return zmsClient.getGroupMembership(vespaTeam, user);
}
}
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