private DownloadResolver newDownloader(DownloadRequirement req) {
// Infer filename
String filename = null;
for (Function<? super DownloadRequirement, String> filenameProducer : filenameProducers) {
filename = filenameProducer.apply(req);
if (!Strings.isBlank(filename)) break;
}
// If a filename-producer has given us the filename, then augment the DownloadRequirement with
// that
// (so that local-repo substitutions etc can use that explicit filename)
DownloadRequirement wrappedReq;
if (filename == null) {
wrappedReq = req;
} else {
wrappedReq = BasicDownloadRequirement.copy(req, ImmutableMap.of("filename", filename));
}
// Get ordered download targets to be tried
List<String> primaries = Lists.newArrayList();
List<String> fallbacks = Lists.newArrayList();
for (Function<? super DownloadRequirement, ? extends DownloadTargets> producer : producers) {
DownloadTargets vals = producer.apply(wrappedReq);
primaries.addAll(vals.getPrimaryLocations());
fallbacks.addAll(vals.getFallbackLocations());
if (!vals.canContinueResolving()) {
break;
}
}
Set<String> result = Sets.newLinkedHashSet();
result.addAll(primaries);
result.addAll(fallbacks);
if (result.isEmpty()) {
throw new IllegalArgumentException("No downloads matched for " + req);
}
// If filename-producers didn't give any explicit filename, then infer from download results
if (filename == null) {
for (String target : result) {
filename = FilenameProducers.inferFilename(target);
if (!Strings.isBlank(filename)) break;
}
}
if (Strings.isBlank(filename)) {
throw new IllegalArgumentException(
"No filenames matched for " + req + " (targets " + result + ")");
}
// And return the result
return new BasicDownloadResolver(result, filename);
}
static String makeCommandExecutingInDirectory(
String command, String executionDir, EntityLocal entity) {
String finalCommand = command;
String execDir = executionDir;
if (Strings.isBlank(execDir)) {
// default to run dir
execDir = entity.getAttribute(SoftwareProcess.RUN_DIR);
// if no run dir, default to home
if (Strings.isBlank(execDir)) {
execDir = "~";
}
} else if (!Os.isAbsolutish(execDir)) {
// relative paths taken wrt run dir
String runDir = entity.getAttribute(SoftwareProcess.RUN_DIR);
if (!Strings.isBlank(runDir)) {
execDir = Os.mergePaths(runDir, execDir);
}
}
if (!"~".equals(execDir)) {
finalCommand = "mkdir -p '" + execDir + "' && cd '" + execDir + "' && " + finalCommand;
}
return finalCommand;
}
@Override
public void install() {
// will fail later if can't sudo (if sudo is required)
DynamicTasks.queueIfPossible(SshTasks.dontRequireTtyForSudo(getMachine(), false))
.orSubmitAndBlock();
DownloadResolver nginxResolver = mgmt().getEntityDownloadsManager().newDownloader(this);
List<String> nginxUrls = nginxResolver.getTargets();
String nginxSaveAs = nginxResolver.getFilename();
setExpandedInstallDir(
getInstallDir()
+ "/"
+ nginxResolver.getUnpackedDirectoryName(format("nginx-%s", getVersion())));
boolean sticky = ((NginxController) entity).isSticky();
boolean isMac = getMachine().getOsDetails().isMac();
MutableMap<String, String> installGccPackageFlags =
MutableMap.of(
"onlyifmissing", "gcc",
"yum", "gcc",
"apt", "gcc",
"zypper", "gcc",
"port", null);
MutableMap<String, String> installMakePackageFlags =
MutableMap.of(
"onlyifmissing", "make",
"yum", "make",
"apt", "make",
"zypper", "make",
"port", null);
MutableMap<String, String> installPackageFlags =
MutableMap.of(
"yum", "openssl-devel pcre-devel",
"apt", "libssl-dev zlib1g-dev libpcre3-dev",
"zypper", "libopenssl-devel pcre-devel",
"port", null);
String stickyModuleVersion = entity.getConfig(NginxController.STICKY_VERSION);
DownloadResolver stickyModuleResolver =
mgmt()
.getEntityDownloadsManager()
.newDownloader(
this, "stickymodule", ImmutableMap.of("addonversion", stickyModuleVersion));
List<String> stickyModuleUrls = stickyModuleResolver.getTargets();
String stickyModuleSaveAs = stickyModuleResolver.getFilename();
String stickyModuleExpandedInstallDir =
String.format(
"%s/src/%s",
getExpandedInstallDir(),
stickyModuleResolver.getUnpackedDirectoryName(
"nginx-sticky-module-" + stickyModuleVersion));
List<String> cmds = Lists.newArrayList();
cmds.add(BashCommands.INSTALL_TAR);
cmds.add(
BashCommands.alternatives(
BashCommands.ifExecutableElse0(
"apt-get", BashCommands.installPackage("build-essential")),
BashCommands.ifExecutableElse0(
"yum",
BashCommands.sudo("yum -y --nogpgcheck groupinstall \"Development Tools\""))));
cmds.add(BashCommands.installPackage(installGccPackageFlags, "nginx-prerequisites-gcc"));
cmds.add(BashCommands.installPackage(installMakePackageFlags, "nginx-prerequisites-make"));
cmds.add(BashCommands.installPackage(installPackageFlags, "nginx-prerequisites"));
cmds.addAll(BashCommands.commandsToDownloadUrlsAs(nginxUrls, nginxSaveAs));
String pcreExpandedInstallDirname = "";
if (isMac) {
String pcreVersion = entity.getConfig(NginxController.PCRE_VERSION);
DownloadResolver pcreResolver =
mgmt()
.getEntityDownloadsManager()
.newDownloader(this, "pcre", ImmutableMap.of("addonversion", pcreVersion));
List<String> pcreUrls = pcreResolver.getTargets();
String pcreSaveAs = pcreResolver.getFilename();
pcreExpandedInstallDirname = pcreResolver.getUnpackedDirectoryName("pcre-" + pcreVersion);
// Install PCRE
cmds.addAll(BashCommands.commandsToDownloadUrlsAs(pcreUrls, pcreSaveAs));
cmds.add(format("mkdir -p %s/pcre-dist", getInstallDir()));
cmds.add(format("tar xvzf %s", pcreSaveAs));
cmds.add(format("cd %s", pcreExpandedInstallDirname));
cmds.add(format("./configure --prefix=%s/pcre-dist", getInstallDir()));
cmds.add("make");
cmds.add("make install");
cmds.add("cd ..");
}
cmds.add(format("tar xvzf %s", nginxSaveAs));
cmds.add(format("cd %s", getExpandedInstallDir()));
if (sticky) {
cmds.add("cd src");
cmds.addAll(BashCommands.commandsToDownloadUrlsAs(stickyModuleUrls, stickyModuleSaveAs));
cmds.add(format("tar xvzf %s", stickyModuleSaveAs));
cmds.add("cd ..");
}
// Note that for OS X, not including space after "-L" because broken in 10.6.8 (but fixed in
// 10.7.x)
// see http://trac.nginx.org/nginx/ticket/227
String withLdOpt = entity.getConfig(NginxController.WITH_LD_OPT);
if (isMac)
withLdOpt =
format("-L%s/pcre-dist/lib", getInstallDir())
+ (Strings.isBlank(withLdOpt) ? "" : " " + withLdOpt);
String withCcOpt = entity.getConfig(NginxController.WITH_CC_OPT);
StringBuilder configureCommand =
new StringBuilder("./configure")
.append(format(" --prefix=%s/dist", getExpandedInstallDir()))
.append(" --with-http_ssl_module")
.append(sticky ? format(" --add-module=%s ", stickyModuleExpandedInstallDir) : "")
.append(!Strings.isBlank(withLdOpt) ? format(" --with-ld-opt=\"%s\"", withLdOpt) : "")
.append(!Strings.isBlank(withCcOpt) ? format(" --with-cc-opt=\"%s\"", withCcOpt) : "");
if (isMac) {
configureCommand
.append(" --with-pcre=")
.append(getInstallDir())
.append("/")
.append(pcreExpandedInstallDirname);
}
cmds.addAll(ImmutableList.of("mkdir -p dist", configureCommand.toString(), "make install"));
ScriptHelper script =
newScript(INSTALLING)
.body
.append(cmds)
.header
.prepend("set -x")
.gatherOutput()
.failOnNonZeroResultCode(false);
int result = script.execute();
if (result != 0) {
String notes =
"likely an error building nginx. consult the brooklyn log ssh output for further details.\n"
+ "note that this Brooklyn nginx driver compiles nginx from source. "
+ "it attempts to install common prerequisites but this does not always succeed.\n";
OsDetails os = getMachine().getOsDetails();
if (os.isMac()) {
notes +=
"deploying to Mac OS X, you will require Xcode and Xcode command-line tools, and on "
+ "some versions the pcre library (e.g. using macports, sudo port install pcre).\n";
}
if (os.isWindows()) {
notes +=
"this nginx driver is not designed for windows, unless cygwin is installed, and you are patient.\n";
}
if (getEntity().getApplication().getClass().getCanonicalName().startsWith("brooklyn.demo.")) {
// this is maybe naughty ... but since we use nginx in the first demo example,
// and since it's actually pretty complicated, let's give a little extra hand-holding
notes +=
"if debugging this is all a bit much and you just want to run a demo, "
+ "you have two fairly friendly options.\n"
+ "1. you can use a well known cloud, like AWS or Rackspace, where this should run "
+ "in a tried-and-tested Ubuntu or CentOS environment, without any problems "
+ "(and if it does let us know and we'll fix it!).\n"
+ "2. or you can just use the demo without nginx, instead access the appserver instances directly.\n";
}
if (!script.getResultStderr().isEmpty()) {
notes += "\n" + "STDERR\n" + script.getResultStderr() + "\n";
Streams.logStreamTail(
log,
"STDERR of problem in " + Tasks.current(),
Streams.byteArrayOfString(script.getResultStderr()),
1024);
}
if (!script.getResultStdout().isEmpty()) {
notes += "\n" + "STDOUT\n" + script.getResultStdout() + "\n";
Streams.logStreamTail(
log,
"STDOUT of problem in " + Tasks.current(),
Streams.byteArrayOfString(script.getResultStdout()),
1024);
}
Tasks.setExtraStatusDetails(notes.trim());
throw new IllegalStateException(
"Installation of nginx failed (shell returned non-zero result " + result + ")");
}
}