Change image to use python 3

This patch set updates the Dockerfile to use python3 and pip3 instead
for all ubuntu images.

Change-Id: I20a6f1a28b2adadd66d42907bbec977c28f5a044
Signed-off-by: Tin Lam <tlam@omegaprime.dev>

ceph-config-helper/Dockerfile.ubuntu_xenial

@@ -14,7 +14,7 @@ RUN set -ex ;\
     export DEBIAN_FRONTEND=noninteractive ;\
     apt-get update ;\
     apt-get dist-upgrade -y ;\
-    apt-get install -y apt-transport-https ca-certificates ;\
+    apt-get install --no-install-recommends -y apt-transport-https ca-certificates ;\
     apt-key add /etc/apt/ceph-${CEPH_RELEASE}.key ;\
     rm -f /etc/apt/ceph-${CEPH_RELEASE}.key ;\
     echo deb ${CEPH_REPO} ${DISTRO_CODENAME} main | tee /etc/apt/sources.list.d/ceph.list ;\
@@ -26,11 +26,11 @@ RUN set -ex ;\
         ceph \
         curl \
         gcc \
-        python \
-        python-dev \
+        python3 \
+        python3-dev \
         jq ;\
-    curl -sSL https://bootstrap.pypa.io/get-pip.py | python ;\
-    pip --no-cache-dir install --upgrade \
+    curl -sSL https://bootstrap.pypa.io/get-pip.py | python3 ;\
+    pip3 --no-cache-dir install --upgrade \
       crush \
       rgwadmin \
       six \
@@ -42,6 +42,6 @@ RUN set -ex ;\
     chmod +x /usr/bin/kubectl ;\
     rm -rf ${TMP_DIR} ;\
     apt-get purge -y --auto-remove \
-        python-dev \
+        python3-dev \
         gcc ;\
     rm -rf /var/lib/apt/lists/*

ceph-daemon/Dockerfile.ubuntu_xenial

@@ -47,13 +47,13 @@ RUN set -ex ;\
         curl \
         gcc \
         gdb \
-        python \
-        python-dev \
+        python3 \
+        python3-dev \
         uuid-runtime \
         jq \
         alien ;\
-    curl -sSL https://bootstrap.pypa.io/get-pip.py | python ;\
-    pip --no-cache-dir install --upgrade \
+    curl -sSL https://bootstrap.pypa.io/get-pip.py | python3 ;\
+    pip3 --no-cache-dir install --upgrade \
       six \
       python-openstackclient \
       python-swiftclient ;\
@@ -73,7 +73,7 @@ RUN set -ex ;\
     mkdir -p /etc/confd/templates ;\
     rm -rf ${TMP_DIR} ;\
     apt-get purge -y --auto-remove \
-        python-dev \
+        python3-dev \
         gcc ;\
     rm -rf /var/lib/apt/lists/* ;\
     rm -rf /usr/share/doc/ ;\

mariadb/Dockerfile.ubuntu_xenial

@@ -5,11 +5,11 @@ RUN set -ex ;\
     apt-get update ;\
     apt-get upgrade -y ;\
     apt-get install -y --no-install-recommends \
-        python-pip ;\
-    pip --no-cache-dir install --upgrade pip ;\
+        python3-pip ;\
+    pip3 --no-cache-dir install --upgrade pip ;\
     hash -r ;\
-    pip --no-cache-dir install --upgrade setuptools ;\
-    pip --no-cache-dir install --upgrade \
+    pip3 --no-cache-dir install --upgrade setuptools ;\
+    pip3 --no-cache-dir install --upgrade \
       configparser \
       iso8601 \
       kubernetes ;\

openvswitch/Dockerfile.ubuntu_bionic-dpdk

@@ -116,7 +116,7 @@ RUN set -ex;\
       apt-get install -y openvswitch-switch-dpdk ;\
       update-alternatives --set ovs-vswitchd /usr/lib/openvswitch-switch-dpdk/ovs-vswitchd-dpdk ;\
     fi ;\
-    apt-get install -y iproute2 tcpdump conntrack ;\
-    apt-get install -y python python-dev python-pip ;\
-    pip install ovs netifaces ;\
+    apt-get install --no-install-recommends -y iproute2 tcpdump conntrack ;\
+    apt-get install --no-install-recommends -y python3 python3-dev python3-pip python3-setuptools ;\
+    pip3 --no-cache-dir install ovs netifaces ;\
     rm -rf /var/lib/apt/lists/* ;\

tempest/Dockerfile.opensuse_15

@@ -13,8 +13,8 @@ RUN set -ex ;\
     zypper --non-interactive refresh ;\
     zypper --non-interactive up -y ;\
     zypper --non-interactive install -y openstack-tempest \
-                                        python-cinder-tempest-plugin \
-                                        python-heat-tempest-plugin \
-                                        python-keystone-tempest-plugin \
-                                        python-neutron-tempest-plugin ;\
+                                        python3-cinder-tempest-plugin \
+                                        python3-heat-tempest-plugin \
+                                        python3-keystone-tempest-plugin \
+                                        python3-neutron-tempest-plugin ;\
     zypper --non-interactive clean -a

tempest/Dockerfile.ubuntu_xenial

@@ -6,19 +6,20 @@ RUN set -ex ;\
     apt-get upgrade -y ;\
     apt-get install netbase -y ;\
     apt-get install --no-install-recommends -y \
-        python-dev \
+        python3-dev \
         build-essential \
-        python-pip \
+        python3-pip \
+        libssl-dev \
         git ;\
     git clone https://git.openstack.org/openstack/tempest ;\
     git clone https://git.openstack.org/openstack/cinder-tempest-plugin ;\
     git clone https://git.openstack.org/openstack/heat-tempest-plugin ;\
     git clone https://git.openstack.org/openstack/keystone-tempest-plugin ;\
     git clone https://git.openstack.org/openstack/neutron-tempest-plugin ;\
-    pip install -U setuptools ;\
-    pip install wheel ;\
-    pip install -e tempest/ \
-                   cinder-tempest-plugin/ \
-                   heat-tempest-plugin/ \
-                   keystone-tempest-plugin/ \
-                   neutron-tempest-plugin/ ;\
+    pip3 install -U setuptools ;\
+    pip3 install wheel ;\
+    pip3 install -e tempest/ \
+                    cinder-tempest-plugin/ \
+                    heat-tempest-plugin/ \
+                    keystone-tempest-plugin/ \
+                    neutron-tempest-plugin/ ;\