Merge "Set apache proxy-initial-not-pooled env var"
diff --git a/stack.sh b/stack.sh
index 497c8bc..144c233 100755
--- a/stack.sh
+++ b/stack.sh
@@ -335,6 +335,13 @@
     # no-op on other platforms.
     sudo yum-config-manager --enable rhel-7-server-optional-rpms
 
+    # Enable the Software Collections (SCL) repository for CentOS.
+    # This repository includes useful software (e.g. the Go Toolset)
+    # which is not present in the main repository.
+    if [[ "$os_VENDOR" =~ (CentOS) ]]; then
+        yum_install centos-release-scl
+    fi
+
     if is_oraclelinux; then
         sudo yum-config-manager --enable ol7_optional_latest ol7_addons ol7_MySQL56
     fi
diff --git a/stackrc b/stackrc
index 746372d..170d3b6 100644
--- a/stackrc
+++ b/stackrc
@@ -767,7 +767,7 @@
 fi
 ETCD_PORT=${ETCD_PORT:-2379}
 ETCD_PEER_PORT=${ETCD_PEER_PORT:-2380}
-ETCD_DOWNLOAD_URL=${ETCD_DOWNLOAD_URL:-https://github.com/coreos/etcd/releases/download}
+ETCD_DOWNLOAD_URL=${ETCD_DOWNLOAD_URL:-https://github.com/etcd-io/etcd/releases/download}
 ETCD_NAME=etcd-$ETCD_VERSION-linux-$ETCD_ARCH
 ETCD_DOWNLOAD_FILE=$ETCD_NAME.tar.gz
 ETCD_DOWNLOAD_LOCATION=$ETCD_DOWNLOAD_URL/$ETCD_VERSION/$ETCD_DOWNLOAD_FILE