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The module will configure a Cassandra server with common options being tweakable. Included is also a test which will spin up 3 nodes and verify that the cluster can be formed, broken, and repaired.
69 lines
2.2 KiB
Nix
69 lines
2.2 KiB
Nix
import ./make-test.nix ({ pkgs, ...}:
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let
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user = "cassandra";
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nodeCfg = nodes: selfIP: cassandraOpts:
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{
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services.cassandra = {
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enable = true;
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listenAddress = selfIP;
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rpcAddress = "0.0.0.0";
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seeds = [ "192.168.1.1" ];
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package = pkgs.cassandra_2_0;
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jre = pkgs.openjdk;
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clusterName = "ci ahoy";
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authenticator = "PasswordAuthenticator";
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authorizer = "CassandraAuthorizer";
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user = user;
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} // cassandraOpts;
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nixpkgs.config.allowUnfree = true;
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virtualisation.memorySize = 1024;
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};
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in
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{
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name = "cassandra-ci";
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nodes = {
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cass0 = {pkgs, config, nodes, ...}: nodeCfg nodes "192.168.1.1" {};
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cass1 = {pkgs, config, nodes, ...}: nodeCfg nodes "192.168.1.2" {};
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cass2 = {pkgs, config, nodes, ...}: nodeCfg nodes "192.168.1.3" {
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extraParams = [
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''JVM_OPTS="$JVM_OPTS -Dcassandra.replace_address=192.168.1.2"''
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];
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listenAddress = "192.168.1.3";
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};
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};
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testScript = ''
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subtest "start seed", sub {
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$cass0->waitForUnit("cassandra.service");
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$cass0->waitForOpenPort(9160);
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$cass0->execute("echo show version | cqlsh localhost -u cassandra -p cassandra");
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sleep 2;
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$cass0->succeed("echo show version | cqlsh localhost -u cassandra -p cassandra");
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$cass1->start;
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};
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subtest "cassandra user/group", sub {
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$cass0->succeed("id \"${user}\" >/dev/null");
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$cass1->succeed("id \"${user}\" >/dev/null");
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};
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subtest "bring up cassandra cluster", sub {
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$cass1->waitForUnit("cassandra.service");
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$cass0->waitUntilSucceeds("nodetool status | grep -c UN | grep 2");
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};
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subtest "break and fix node", sub {
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$cass0->block;
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$cass0->waitUntilSucceeds("nodetool status | grep -c DN | grep 1");
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$cass0->unblock;
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$cass0->waitUntilSucceeds("nodetool status | grep -c UN | grep 2");
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};
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subtest "replace crashed node", sub {
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$cass1->crash;
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$cass2->start;
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$cass2->waitForUnit("cassandra.service");
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$cass0->waitUntilFails("nodetool status | grep UN | grep 192.168.1.2");
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$cass0->waitUntilSucceeds("nodetool status | grep UN | grep 192.168.1.3");
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};
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'';
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})
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