Update TF bazel version requirements.

PiperOrigin-RevId: 315483879
Change-Id: I4be29ffa3c425f01c28dc8c95250209a2b0bada4

.bazelversion

-3.0.0
+3.1.0

configure.py

@@ -49,7 +49,7 @@ _TF_BAZELRC_FILENAME = '.tf_configure.bazelrc'
 _TF_WORKSPACE_ROOT = ''
 _TF_BAZELRC = ''
 _TF_CURRENT_BAZEL_VERSION = None
-_TF_MIN_BAZEL_VERSION = '2.0.0'
+_TF_MIN_BAZEL_VERSION = '3.1.0'
 _TF_MAX_BAZEL_VERSION = '3.99.0'
 
 NCCL_LIB_PATHS = [

tensorflow/tools/ci_build/install/install_bazel.sh

@@ -15,7 +15,7 @@
 # ==============================================================================
 
 # Select bazel version.
-BAZEL_VERSION="3.0.0"
+BAZEL_VERSION="3.1.0"
 
 set +e
 local_bazel_ver=$(bazel version 2>&1 | grep -i label | awk '{print $3}')

tensorflow/tools/ci_build/install/install_bazel_from_source.sh

@@ -18,7 +18,7 @@
 # It will compile bazel from source and install it in /usr/local/bin
 
 # Select bazel version.
-BAZEL_VERSION="3.0.0"
+BAZEL_VERSION="3.1.0"
 
 set +e
 local_bazel_ver=$(bazel version 2>&1 | grep -i label | awk '{print $3}')

tensorflow/tools/ci_build/release/common.sh

@@ -17,7 +17,7 @@
 
 # Keep in sync with tensorflow_estimator and configure.py.
 # LINT.IfChange
-LATEST_BAZEL_VERSION=3.0.0
+LATEST_BAZEL_VERSION=3.1.0
 # LINT.ThenChange(
 #   //tensorflow/opensource_only/configure.py,
 #   //tensorflow_estimator/google/kokoro/common.sh,

tensorflow/tools/dockerfiles/dockerfiles/devel-cpu-jupyter.Dockerfile

@@ -93,7 +93,7 @@ RUN python3 -m pip --no-cache-dir install \
     enum34
 
 # Install bazel
-ARG BAZEL_VERSION=3.0.0
+ARG BAZEL_VERSION=3.1.0
 RUN mkdir /bazel && \
     wget -O /bazel/installer.sh "https://github.com/bazelbuild/bazel/releases/download/${BAZEL_VERSION}/bazel-${BAZEL_VERSION}-installer-linux-x86_64.sh" && \
     wget -O /bazel/LICENSE.txt "https://raw.githubusercontent.com/bazelbuild/bazel/master/LICENSE" && \

tensorflow/tools/dockerfiles/dockerfiles/devel-cpu.Dockerfile

@@ -93,7 +93,7 @@ RUN python3 -m pip --no-cache-dir install \
     enum34
 
 # Install bazel
-ARG BAZEL_VERSION=3.0.0
+ARG BAZEL_VERSION=3.1.0
 RUN mkdir /bazel && \
     wget -O /bazel/installer.sh "https://github.com/bazelbuild/bazel/releases/download/${BAZEL_VERSION}/bazel-${BAZEL_VERSION}-installer-linux-x86_64.sh" && \
     wget -O /bazel/LICENSE.txt "https://raw.githubusercontent.com/bazelbuild/bazel/master/LICENSE" && \

tensorflow/tools/dockerfiles/dockerfiles/devel-gpu-jupyter.Dockerfile

@@ -135,7 +135,7 @@ RUN python3 -m pip --no-cache-dir install \
     enum34
 
 # Install bazel
-ARG BAZEL_VERSION=3.0.0
+ARG BAZEL_VERSION=3.1.0
 RUN mkdir /bazel && \
     wget -O /bazel/installer.sh "https://github.com/bazelbuild/bazel/releases/download/${BAZEL_VERSION}/bazel-${BAZEL_VERSION}-installer-linux-x86_64.sh" && \
     wget -O /bazel/LICENSE.txt "https://raw.githubusercontent.com/bazelbuild/bazel/master/LICENSE" && \

tensorflow/tools/dockerfiles/dockerfiles/devel-gpu.Dockerfile

@@ -135,7 +135,7 @@ RUN python3 -m pip --no-cache-dir install \
     enum34
 
 # Install bazel
-ARG BAZEL_VERSION=3.0.0
+ARG BAZEL_VERSION=3.1.0
 RUN mkdir /bazel && \
     wget -O /bazel/installer.sh "https://github.com/bazelbuild/bazel/releases/download/${BAZEL_VERSION}/bazel-${BAZEL_VERSION}-installer-linux-x86_64.sh" && \
     wget -O /bazel/LICENSE.txt "https://raw.githubusercontent.com/bazelbuild/bazel/master/LICENSE" && \

tensorflow/tools/dockerfiles/partials/ubuntu/bazel.partial.Dockerfile

@@ -23,7 +23,7 @@ RUN python3 -m pip --no-cache-dir install \
     enum34
 
 # Install bazel
-ARG BAZEL_VERSION=3.0.0
+ARG BAZEL_VERSION=3.1.0
 RUN mkdir /bazel && \
     wget -O /bazel/installer.sh "https://github.com/bazelbuild/bazel/releases/download/${BAZEL_VERSION}/bazel-${BAZEL_VERSION}-installer-linux-x86_64.sh" && \
     wget -O /bazel/LICENSE.txt "https://raw.githubusercontent.com/bazelbuild/bazel/master/LICENSE" && \

tensorflow/tools/dockerfiles/partials/ubuntu/bazelbuild.partial.Dockerfile

@@ -21,7 +21,7 @@ RUN python3 -m pip --no-cache-dir install \
     enum34
 
  # Build and install bazel
-ENV BAZEL_VERSION 3.0.0
+ENV BAZEL_VERSION 3.1.0
 WORKDIR /
 RUN mkdir /bazel && \
     cd /bazel && \