dist/ami: setup correct repository when --localrpm specified

There was no way to setup correct repo when AMI is building by --localrpm option, since AMI does not have access to 'version' file, and we don't passed repo URL to the AMI.
So detect optimal repo path when starting build AMI, passes repo URL to the AMI, setup it correctly.

Note: this changes behavor of build_ami.sh/scylla_install_pkg's --repo option.
It was repository URL, but now become .repo/.list file URL.
This is optimal for the distribution which requires 3rdparty packages to install scylla, like CentOS7.
Existing shell scripts which invoking build_ami.sh are need to change in new way, such as our Jenkins jobs.

Fixes #1414

Signed-off-by: Takuya ASADA <syuu@scylladb.com>
Message-Id: <1469636377-17828-1-git-send-email-syuu@scylladb.com>
(cherry picked from commit d3746298ae)

dist/ami/build_ami.sh

@@ -8,7 +8,7 @@ fi
 print_usage() {
     echo "build_ami.sh --localrpm --repo [URL]"
     echo "  --localrpm  deploy locally built rpms"
-    echo "  --repo  specify repository URL"
+    echo "  --repo  specify .repo/.list file URL"
     exit 1
 }
 LOCALRPM=0
@@ -16,7 +16,8 @@ while [ $# -gt 0 ]; do
     case "$1" in
         "--localrpm")
             LOCALRPM=1
-            INSTALL_ARGS="$INSTALL_ARGS --localrpm"
+            REPO=`./scripts/scylla_current_repo`
+            INSTALL_ARGS="$INSTALL_ARGS --localrpm --repo $REPO"
             shift 1
             ;;
         "--repo")

scripts/scylla_current_repo

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+VERSION=$(./SCYLLA-VERSION-GEN)
+SCYLLA_VERSION=$(cat build/SCYLLA-VERSION-FILE)
+SCYLLA_RELEASE=$(cat build/SCYLLA-RELEASE-FILE)
+
+. /etc/os-release
+
+if [ "$SCYLLA_VERSION" = "666.development" ]; then
+    if [ "$ID" = "ubuntu" ]; then
+        CODENAME=`lsb_release -c|awk '{print $2}'`
+        if [ "$CODENAME" = "trusty" ]; then
+            CODENAME=ubuntu
+        fi
+        echo https://downloads.scylladb.com/deb/unstable/$CODENAME/master/latest/scylla.list
+    elif [ "$ID" = "centos" ]; then
+        echo https://downloads.scylladb.com/rpm/unstable/centos/master/latest/scylla.repo
+    elif [ "$ID" = "fedora" ]; then
+        echo https://downloads.scylladb.com/rpm/unstable/fedora/master/latest/scylla.repo
+    else
+        echo "Unsupported distribution."
+        exit 1
+    fi
+else
+    REPO_VERSION=$(echo $SCYLLA_VERSION |sed -e "s/^\([0-9]*\.[0-9]*\).*/\1/")
+    if [ "$ID" = "ubuntu" ]; then
+        CODENAME=`lsb_release -c|awk '{print $2}'`
+        echo http://downloads.scylladb.com/deb/ubuntu/scylla-$REPO_VERSION-$CODENAME.list
+    elif [ "$ID" = "centos" ]; then
+        echo http://downloads.scylladb.com/rpm/centos/scylla-$REPO_VERSION.repo
+    elif [ "$ID" = "fedora" ]; then
+        echo http://downloads.scylladb.com/rpm/fedora/scylla-$REPO_VERSION.repo
+    else
+        echo "Unsupported distribution."
+        exit 1
+    fi
+fi

scripts/scylla_install_pkg

@@ -10,7 +10,7 @@ fi
 print_usage() {
     echo "scylla_install_pkg --local-pkg /home/scylla/rpms --repo [URL]"
     echo "  --local-pkg	install locally built .rpm/.deb on specified directory"
-    echo "  --repo specify repository URL"
+    echo "  --repo specify .repo/.list file URL"
     exit 1
 }
 
@@ -42,10 +42,8 @@ if [ "$ID" = "ubuntu" ]; then
     chmod +x /usr/sbin/policy-rc.d
     cp /etc/hosts /etc/hosts.orig
     echo 127.0.0.1 `hostname` >> /etc/hosts
-    if [ "$REPO" = "" ]; then
-        echo "deb http://s3.amazonaws.com/downloads.scylladb.com/deb/ubuntu trusty/scylladb multiverse" > /etc/apt/sources.list.d/scylla.list
-    else
-        echo "deb $REPO trusty/scylladb multiverse" > /etc/apt/sources.list.d/scylla.list
+    if [ "$REPO" != "" ]; then
+        curl -o /etc/apt/sources.list.d/scylla.list $REPO
     fi
     apt-get update
     if [ "$LOCAL_PKG" = "" ]; then
@@ -62,19 +60,14 @@ if [ "$ID" = "ubuntu" ]; then
     mv /etc/hosts.orig /etc/hosts
     rm /usr/sbin/policy-rc.d
 else
-    if [ "$ID" = "fedora" ]; then
-        if [ "$REPO" = "" ]; then
-            curl http://downloads.scylladb.com/rpm/fedora/scylla.repo > /etc/yum.repos.d/scylla.repo
-        else
-            curl $REPO > /etc/yum.repos.d/scylla.repo
-        fi
-    elif [ "$ID" = "centos" ] || [ "$ID" = "rhel" ]; then
-        if [ "$REPO" = "" ]; then
-            curl http://downloads.scylladb.com/rpm/centos/scylla.repo > /etc/yum.repos.d/scylla.repo
-        else
-            curl $REPO > /etc/yum.repos.d/scylla.repo
-        fi
-        yum install -y epel-release
+    if [ "$REPO" != "" ]; then
+        curl -o /etc/yum.repos.d/scylla.repo $REPO
+    fi
+
+    if [ "$ID" = "centos" ]; then
+            yum install -y epel-release
+    elif [ "$ID" = "rhel" ]; then
+        rpm -ivh http://download.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-7.noarch.rpm
     else
         echo "Unsupported distribution"
         exit 1