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WithAWSStep.java
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WithAWSStep.java
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/*
* -
* #%L
* Pipeline: AWS Steps
* %%
* Copyright (C) 2016 Taimos GmbH
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
package de.taimos.pipeline.aws;
import java.io.IOException;
import java.util.Collections;
import java.util.Set;
import javax.annotation.Nonnull;
import org.jenkinsci.plugins.workflow.steps.BodyExecutionCallback;
import org.jenkinsci.plugins.workflow.steps.EnvironmentExpander;
import org.jenkinsci.plugins.workflow.steps.Step;
import org.jenkinsci.plugins.workflow.steps.StepContext;
import org.jenkinsci.plugins.workflow.steps.StepDescriptor;
import org.jenkinsci.plugins.workflow.steps.StepExecution;
import org.kohsuke.stapler.AncestorInPath;
import org.kohsuke.stapler.DataBoundConstructor;
import org.kohsuke.stapler.DataBoundSetter;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicSessionCredentials;
import com.amazonaws.services.securitytoken.AWSSecurityTokenService;
import com.amazonaws.services.securitytoken.AWSSecurityTokenServiceClientBuilder;
import com.amazonaws.services.securitytoken.model.Credentials;
import com.amazonaws.services.securitytoken.model.GetCallerIdentityRequest;
import com.amazonaws.services.securitytoken.model.GetFederationTokenRequest;
import com.amazonaws.services.securitytoken.model.GetFederationTokenResult;
import com.amazonaws.util.StringUtils;
import com.cloudbees.jenkins.plugins.awscredentials.AmazonWebServicesCredentials;
import com.cloudbees.plugins.credentials.CredentialsMatchers;
import com.cloudbees.plugins.credentials.CredentialsProvider;
import com.cloudbees.plugins.credentials.common.StandardListBoxModel;
import com.cloudbees.plugins.credentials.common.StandardUsernamePasswordCredentials;
import de.taimos.pipeline.aws.utils.AssumedRole;
import de.taimos.pipeline.aws.utils.AssumedRole.AssumeRole;
import de.taimos.pipeline.aws.utils.IamRoleUtils;
import de.taimos.pipeline.aws.utils.StepUtils;
import hudson.EnvVars;
import hudson.Extension;
import hudson.model.Item;
import hudson.model.Queue;
import hudson.model.Run;
import hudson.model.TaskListener;
import hudson.model.queue.Tasks;
import hudson.security.ACL;
import hudson.util.ListBoxModel;
public class WithAWSStep extends Step {
private String role = "";
private String roleAccount = "";
private String region = "";
private String endpointUrl = "";
private String profile = "";
private String credentials = "";
private String externalId = "";
private String federatedUserId = "";
private String policy = "";
private String iamMfaToken = "";
private Integer duration = 3600;
private String roleSessionName;
private String principalArn = "";
private String samlAssertion = "";
private boolean useNode = false;
@DataBoundConstructor
public WithAWSStep() {
//
}
public String getRole() {
return this.role;
}
@DataBoundSetter
public void setRole(String role) {
this.role = role;
}
public String getRoleAccount() {
return this.roleAccount;
}
@DataBoundSetter
public void setRoleAccount(String roleAccount) {
this.roleAccount = roleAccount;
}
public String getRegion() {
return this.region;
}
@DataBoundSetter
public void setRegion(String region) {
this.region = region;
}
public String getEndpointUrl() {
return this.endpointUrl;
}
@DataBoundSetter
public void setEndpointUrl(String endpointUrl) {
this.endpointUrl = endpointUrl;
}
public String getProfile() {
return this.profile;
}
@DataBoundSetter
public void setProfile(String profile) {
this.profile = profile;
}
public String getCredentials() {
return this.credentials;
}
@DataBoundSetter
public void setCredentials(String credentials) {
this.credentials = credentials;
}
public String getExternalId() {
return this.externalId;
}
@DataBoundSetter
public void setExternalId(String externalId) {
this.externalId = externalId;
}
public String getIamMfaToken() {
return this.iamMfaToken;
}
@DataBoundSetter
public void setIamMfaToken(String iamMfaToken) {
this.iamMfaToken = iamMfaToken;
}
public String getFederatedUserId() {
return this.federatedUserId;
}
@DataBoundSetter
public void setFederatedUserId(String federatedUserId) {
this.federatedUserId = federatedUserId;
}
public String getPolicy() {
return this.policy;
}
@DataBoundSetter
public void setPolicy(String policy) {
this.policy = policy;
}
public Integer getDuration() {
return this.duration;
}
@DataBoundSetter
public void setDuration(Integer duration) {
this.duration = duration;
}
public String getRoleSessionName() {
return this.roleSessionName;
}
@DataBoundSetter
public void setRoleSessionName(String roleSessionName) {
this.roleSessionName = roleSessionName;
}
public String getPrincipalArn() {
return this.principalArn;
}
@DataBoundSetter
public void setPrincipalArn(final String principalArn) {
this.principalArn = principalArn;
}
public String getSamlAssertion() {
return this.samlAssertion;
}
@DataBoundSetter
public void setSamlAssertion(final String samlAssertion) {
this.samlAssertion = samlAssertion;
}
public boolean getUseNode() {
return this.useNode;
}
@DataBoundSetter
public void setUseNode(final boolean useNode) {
this.useNode = useNode;
}
@Override
public StepExecution start(StepContext context) throws Exception {
return new WithAWSStep.Execution(this, context);
}
@Extension
public static class DescriptorImpl extends StepDescriptor {
@Override
public Set<? extends Class<?>> getRequiredContext() {
return StepUtils.requires(TaskListener.class, EnvVars.class, Run.class);
}
@Override
public String getFunctionName() {
return "withAWS";
}
@Override
public String getDisplayName() {
return "set AWS settings for nested block";
}
@Override
public boolean takesImplicitBlockArgument() {
return true;
}
public ListBoxModel doFillCredentialsItems(@AncestorInPath Item context) {
if (context == null || !context.hasPermission(Item.CONFIGURE)) {
return new ListBoxModel();
}
return new StandardListBoxModel()
.includeEmptyValue()
.includeMatchingAs(
context instanceof Queue.Task
? Tasks.getAuthenticationOf((Queue.Task) context)
: ACL.SYSTEM,
context,
StandardUsernamePasswordCredentials.class,
Collections.emptyList(),
CredentialsMatchers.instanceOf(StandardUsernamePasswordCredentials.class))
.includeMatchingAs(context instanceof Queue.Task
? Tasks.getAuthenticationOf((Queue.Task) context)
: ACL.SYSTEM,
context,
AmazonWebServicesCredentials.class,
Collections.emptyList(),
CredentialsMatchers.instanceOf(AmazonWebServicesCredentials.class));
}
}
public static class Execution extends StepExecution {
private final transient WithAWSStep step;
private final EnvVars envVars;
public Execution(WithAWSStep step, StepContext context) {
super(context);
this.step = step;
try {
this.envVars = context.get(EnvVars.class);
this.envVars.put(AWSClientFactory.AWS_PIPELINE_STEPS_FROM_NODE, String.valueOf(this.step.getUseNode()));
} catch (Exception e) {
throw new IllegalStateException(e);
}
}
@Override
public boolean start() throws Exception {
final EnvVars awsEnv = new EnvVars();
this.withCredentials(this.getContext().get(Run.class), awsEnv);
this.withProfile(awsEnv);
this.withRegion(awsEnv);
this.withEndpointUrl(awsEnv);
this.withRole(awsEnv);
this.withFederatedUserId(awsEnv);
EnvironmentExpander expander = new EnvironmentExpander() {
private static final long serialVersionUID = 1L;
@Override
public void expand(@Nonnull EnvVars envVars) {
envVars.overrideAll(awsEnv);
}
};
this.getContext().newBodyInvoker()
.withContext(EnvironmentExpander.merge(this.getContext().get(EnvironmentExpander.class), expander))
.withCallback(BodyExecutionCallback.wrap(this.getContext()))
.start();
return false;
}
private static final String ALLOW_ALL_POLICY = "{\"Version\":\"2012-10-17\",\"Statement\":[{\"Action\":\"*\","
+ "\"Effect\":\"Allow\",\"Resource\":\"*\"}]}";
private void withFederatedUserId(@Nonnull EnvVars localEnv) {
if (!StringUtils.isNullOrEmpty(this.step.getFederatedUserId())) {
AWSSecurityTokenService sts = AWSClientFactory.create(AWSSecurityTokenServiceClientBuilder.standard(), this.getContext(), this.envVars);
GetFederationTokenRequest getFederationTokenRequest = new GetFederationTokenRequest();
getFederationTokenRequest.setDurationSeconds(this.step.getDuration());
getFederationTokenRequest.setName(this.step.getFederatedUserId());
getFederationTokenRequest.setPolicy(ALLOW_ALL_POLICY);
GetFederationTokenResult federationTokenResult = sts.getFederationToken(getFederationTokenRequest);
Credentials credentials = federationTokenResult.getCredentials();
localEnv.override(AWSClientFactory.AWS_ACCESS_KEY_ID, credentials.getAccessKeyId());
localEnv.override(AWSClientFactory.AWS_SECRET_ACCESS_KEY, credentials.getSecretAccessKey());
localEnv.override(AWSClientFactory.AWS_SESSION_TOKEN, credentials.getSessionToken());
this.envVars.overrideAll(localEnv);
}
}
private void withCredentials(@Nonnull Run<?, ?> run, @Nonnull EnvVars localEnv) throws IOException, InterruptedException {
if (!StringUtils.isNullOrEmpty(this.step.getCredentials())) {
StandardUsernamePasswordCredentials usernamePasswordCredentials = CredentialsProvider.findCredentialById(this.step.getCredentials(),
StandardUsernamePasswordCredentials.class, run, Collections.emptyList());
AmazonWebServicesCredentials amazonWebServicesCredentials = CredentialsProvider.findCredentialById(this.step.getCredentials(),
AmazonWebServicesCredentials.class, run, Collections.emptyList());
if (usernamePasswordCredentials != null) {
localEnv.override(AWSClientFactory.AWS_ACCESS_KEY_ID, usernamePasswordCredentials.getUsername());
localEnv.override(AWSClientFactory.AWS_SECRET_ACCESS_KEY, usernamePasswordCredentials.getPassword().getPlainText());
} else if (amazonWebServicesCredentials != null) {
AWSCredentials awsCredentials;
if (StringUtils.isNullOrEmpty(this.step.getIamMfaToken())) {
this.getContext().get(TaskListener.class).getLogger().format("Constructing AWS Credentials");
awsCredentials = amazonWebServicesCredentials.getCredentials();
} else {
// Since the getCredentials does its own roleAssumption, this is all it takes to get credentials
// with this token.
this.getContext().get(TaskListener.class).getLogger().format("Constructing AWS Credentials utilizing MFA Token");
awsCredentials = amazonWebServicesCredentials.getCredentials(this.step.getIamMfaToken());
BasicSessionCredentials basicSessionCredentials = (BasicSessionCredentials) awsCredentials;
localEnv.override(AWSClientFactory.AWS_SESSION_TOKEN, basicSessionCredentials.getSessionToken());
}
localEnv.override(AWSClientFactory.AWS_ACCESS_KEY_ID, awsCredentials.getAWSAccessKeyId());
localEnv.override(AWSClientFactory.AWS_SECRET_ACCESS_KEY, awsCredentials.getAWSSecretKey());
} else {
throw new RuntimeException("Cannot find a Username with password credential with the ID " + this.step.getCredentials());
}
} else if (!StringUtils.isNullOrEmpty(this.step.getSamlAssertion())) {
localEnv.override(AWSClientFactory.AWS_ACCESS_KEY_ID, "access_key_not_used_will_pass_through_SAML_assertion");
localEnv.override(AWSClientFactory.AWS_SECRET_ACCESS_KEY, "secret_access_key_not_used_will_pass_through_SAML_assertion");
}
this.envVars.overrideAll(localEnv);
}
private void withRole(@Nonnull EnvVars localEnv) throws IOException, InterruptedException {
if (!StringUtils.isNullOrEmpty(this.step.getRole())) {
AWSSecurityTokenService sts = AWSClientFactory.create(AWSSecurityTokenServiceClientBuilder.standard(), this.getContext(), this.envVars);
AssumeRole assumeRole = IamRoleUtils.validRoleArn(this.step.getRole()) ? new AssumeRole(this.step.getRole()) :
new AssumeRole(this.step.getRole(), this.createAccountId(sts), this.step.getRegion());
assumeRole.withDurationSeconds(this.step.getDuration());
assumeRole.withExternalId(this.step.getExternalId());
assumeRole.withPolicy(this.step.getPolicy());
assumeRole.withSamlAssertion(this.step.getSamlAssertion(), this.step.getPrincipalArn());
assumeRole.withSessionName(this.createRoleSessionName());
this.getContext().get(TaskListener.class).getLogger().format("Requesting assume role%n");
this.getContext().get(TaskListener.class).getLogger().format("Assuming role ARN is %s", assumeRole.toString());
AssumedRole assumedRole = assumeRole.assumedRole(sts);
this.getContext().get(TaskListener.class).getLogger().format("Assumed role %s with id %s %n ", assumedRole.getAssumedRoleUser().getArn(), assumedRole.getAssumedRoleUser().getAssumedRoleId());
localEnv.override(AWSClientFactory.AWS_ACCESS_KEY_ID, assumedRole.getCredentials().getAccessKeyId());
localEnv.override(AWSClientFactory.AWS_SECRET_ACCESS_KEY, assumedRole.getCredentials().getSecretAccessKey());
localEnv.override(AWSClientFactory.AWS_SESSION_TOKEN, assumedRole.getCredentials().getSessionToken());
this.envVars.overrideAll(localEnv);
}
}
private void withRegion(@Nonnull EnvVars localEnv) throws IOException, InterruptedException {
if (!StringUtils.isNullOrEmpty(this.step.getRegion())) {
this.getContext().get(TaskListener.class).getLogger().format("Setting AWS region %s %n ", this.step.getRegion());
localEnv.override(AWSClientFactory.AWS_DEFAULT_REGION, this.step.getRegion());
localEnv.override(AWSClientFactory.AWS_REGION, this.step.getRegion());
this.envVars.overrideAll(localEnv);
}
}
private void withEndpointUrl(@Nonnull EnvVars localEnv) throws IOException, InterruptedException {
if (!StringUtils.isNullOrEmpty(this.step.getEndpointUrl())) {
this.getContext().get(TaskListener.class).getLogger().format("Setting AWS endpointUrl %s %n ", this.step.getEndpointUrl());
localEnv.override(AWSClientFactory.AWS_ENDPOINT_URL, this.step.getEndpointUrl());
this.envVars.overrideAll(localEnv);
}
}
private void withProfile(@Nonnull EnvVars localEnv) throws IOException, InterruptedException {
if (!StringUtils.isNullOrEmpty(this.step.getProfile())) {
this.getContext().get(TaskListener.class).getLogger().format("Setting AWS profile %s %n ", this.step.getProfile());
localEnv.override(AWSClientFactory.AWS_DEFAULT_PROFILE, this.step.getProfile());
localEnv.override(AWSClientFactory.AWS_PROFILE, this.step.getProfile());
this.envVars.overrideAll(localEnv);
}
}
private String createRoleSessionName() {
if (StringUtils.isNullOrEmpty(this.step.roleSessionName)) {
return RoleSessionNameBuilder
.withJobName(this.envVars.get("JOB_NAME"))
.withBuildNumber(this.envVars.get("BUILD_NUMBER"))
.build();
} else {
return this.step.roleSessionName;
}
}
private String createAccountId(final AWSSecurityTokenService sts) {
if (!StringUtils.isNullOrEmpty(this.step.getRoleAccount())) {
return this.step.getRoleAccount();
} else {
return sts.getCallerIdentity(new GetCallerIdentityRequest()).getAccount();
}
}
private static final long serialVersionUID = 1L;
}
}