Reduced docker image size by 800mb (project-chip#402)

* Reduced docker image size by 800mb

* Pin this to a version

* First pass at modularizing this, but we should get this in, so stopping here

.devcontainer/Dockerfile

@@ -1,5 +1,7 @@
+ARG BUILD_VERSION
+
 # All tools required for compilation belong in chip-build, forms "truth" for CHIP build tooling
-FROM connectedhomeip/chip-build
+FROM connectedhomeip/chip-build:${BUILD_VERSION}
 
 # This Dockerfile contains things useful for an interactive development environment
 ARG USERNAME=vscode

.devcontainer/devcontainer.json

@@ -1,6 +1,12 @@
 {
     "name": "CHIP Ubuntu Development Environment",
-    "dockerFile": "Dockerfile",
+    "build": {
+        "dockerfile": "Dockerfile",
+        "args": {
+            //  "BUILD_VERSION": "$(cat integrations/docker/images/chip-build/version)" // trying to get this to work
+            "BUILD_VERSION": "0.2.7"
+        }
+    },
     "runArgs": [
         "--cap-add=SYS_PTRACE",
         "--security-opt",
@@ -9,16 +15,16 @@
     "remoteUser": "vscode",
     // Add the IDs of extensions you want installed when the container is created in the array below.
     "extensions": [
-		"ms-azuretools.vscode-docker",
-		"xaver.clang-format",
-		"github.vscode-pull-request-github",
-		"maelvalais.autoconf",
-		"yzhang.markdown-all-in-one",
-		"eamodio.gitlens",
-		"yuichinukiyama.vscode-preview-server",
-		"aaron-bond.better-comments",
-		"foxundermoon.shell-format"
-	],
+        "ms-azuretools.vscode-docker",
+        "xaver.clang-format",
+        "github.vscode-pull-request-github",
+        "maelvalais.autoconf",
+        "yzhang.markdown-all-in-one",
+        "eamodio.gitlens",
+        "yuichinukiyama.vscode-preview-server",
+        "aaron-bond.better-comments",
+        "foxundermoon.shell-format"
+    ],
     // Use 'settings' to set *default* container specific settings.json values on container create. 
     // You can edit these settings after create using File > Preferences > Settings > Remote.
     "settings": {

integrations/docker/images/chip-build/Dockerfile

@@ -7,31 +7,33 @@ VOLUME "/var/source"
 RUN set -x \
     && apt-get update \
     && apt-get install -fy \
-         git \
-         curl \
-         jq \
-         make \
-         autoconf \
-         automake \
-         libtool \
-         pkg-config \
-         g++ \
-         clang-9 \
-         clang-format-9 \
-         clang-tidy-9 \
-         lcov \
-         shellcheck \
-         libssl-dev \
-         unzip \
-         wget \
-         libmbedtls-dev \
+    git \
+    curl \
+    jq \
+    make \
+    autoconf \
+    automake \
+    libtool \
+    pkg-config \
+    g++ \
+    clang-9 \
+    clang-format-9 \
+    clang-tidy-9 \
+    lcov \
+    shellcheck \
+    libssl-dev \
+    unzip \
+    wget \
+    libmbedtls-dev \
+    && rm -rf /var/lib/apt/lists/ \
     && : # last line
 
 # Install specific release of openssl
 RUN set -x \
     && cd /tmp && wget https://github.com/openssl/openssl/archive/OpenSSL_1_1_1f.zip \
     && mkdir -p /tmp/openssl && cd /tmp/openssl && unzip ../OpenSSL_1_1_1f.zip \
     && cd /tmp/openssl/openssl-OpenSSL_1_1_1f && ./config && make && make install \
+    && rm -rf /tmp/OpenSSL_1_1_1f.zip \
     && : # last line
 
 # nRF5 SDK, needed for building Nordic Platform code
@@ -41,6 +43,7 @@ RUN set -x \
     && (mkdir /var/nRF5_SDK_for_Thread_and_Zigbee \
     && cd /var/nRF5_SDK_for_Thread_and_Zigbee \
     && unzip /tmp/nRF5SDKforThreadandZigbee.zip) \
+    && rm -rf /tmp/nRF5SDKforThreadandZigbee.zip \
     && : # last line
 
 # Tools for flashing software on Nordic devices, and accessing device logs
@@ -51,6 +54,8 @@ RUN set -x \
     && dpkg -i JLink_Linux_*.deb \
     && dpkg -i nRF-Command-Line-Tools_*.deb \
     && tar zxvf nRF-Command-Line-Tools_*.tar.gz) \
+    && rm -rf /var/nRF5_tools/*.tar.gz \
+    && rm -rf /var/nRF5_tools/*.deb \
     && : # last line
 
 # GNU ARM Embedded toolchain, cross compiler for various platform builds

integrations/docker/images/chip-build/version

@@ -1 +1 @@
-0.2.6
+0.2.7