com.redhat.che.multitenant.toggle.CheServiceAccountTokenToggle.java Source code

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Here is the source code for com.redhat.che.multitenant.toggle.CheServiceAccountTokenToggle.java

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/*
 * Copyright (c) 2016-2018 Red Hat, Inc.
 * This program and the accompanying materials are made
 * available under the terms of the Eclipse Public License 2.0
 * which is available at https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *   Red Hat, Inc. - initial API and implementation
 */
package com.redhat.che.multitenant.toggle;

import javax.annotation.PostConstruct;
import javax.inject.Singleton;
import no.finn.unleash.DefaultUnleash;
import no.finn.unleash.Unleash;
import no.finn.unleash.UnleashContext;
import no.finn.unleash.util.UnleashConfig;
import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/*
 * Toggle for canary rollout of moving Che to Service Account Token
 * @see <a href="https://github.com/redhat-developer/rh-che/issues/532">Change the token used to access Che tenant namespace in OSIO</a>
 */
@Singleton
public class CheServiceAccountTokenToggle {
    private static final Logger LOG = LoggerFactory.getLogger(CheServiceAccountTokenToggle.class);
    private static final String APP_NAME = "rh-che";
    private static final String FEATURE_NAME = "che.serviceaccount.lockdown";
    private static final String UNLEASH_API_ENDPOINT = "http://f8toggles/api";
    private static final String DEFAULT_HOSTNAME = "che-host";
    private static final String HOSTNAME_ENV_VAR = "HOSTNAME";
    private Unleash unleash;

    @PostConstruct
    private void initUnleash() {
        UnleashConfig config = UnleashConfig.builder().appName(APP_NAME).instanceId(getHostname())
                .unleashAPI(UNLEASH_API_ENDPOINT).build();
        this.unleash = new DefaultUnleash(config);
    }

    public boolean useCheServiceAccountToken(final String userId) {
        UnleashContext context = getContext(userId);
        return unleash.isEnabled(FEATURE_NAME, context);
    }

    private UnleashContext getContext(final String userId) {
        return UnleashContext.builder().userId(userId).build();
    }

    private String getHostname() {
        String hostname = System.getenv(HOSTNAME_ENV_VAR);
        LOG.info("HOSTNAME: {}", hostname);
        return StringUtils.isBlank(hostname) ? DEFAULT_HOSTNAME : hostname;
    }
}