diff --git a/Dockerfile b/Dockerfile
index 841c238..6f58631 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,5 @@
-FROM stefanprodan/alpine-base:latest
-
-RUN apk --no-cache add git
+FROM devthefuture/init-container-toolbox:latest
 
 COPY src/entrypoint.sh /entrypoint.sh
-RUN chmod +x /entrypoint.sh
 
 ENTRYPOINT ["/entrypoint.sh"]
diff --git a/README.md b/README.md
index 3f49b4b..0bff3f4 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,8 @@ Inputs:
 * `index_dir` The location of `index.yaml` file in the repo, defaults to the same value as `target_dir`
 * `enterprise_url` The URL of enterprise github server in the format `<server-url>/<organisation>`
 * `dependencies` A list of helm repositories required to verify dependencies in the format `<name>,<url>;<name>,<url>` or if using private repositories `<name>,<username>,<password>,<url>;<name>,<username>,<password>,<url>`. Combinations are allowed.
+* `repo_url` The URL of the git repository
+* `ssh_private_key` SSH private key for ssh connection to the target repository
 
 ## Examples
 
diff --git a/action.yml b/action.yml
index 946063d..31fe350 100644
--- a/action.yml
+++ b/action.yml
@@ -55,6 +55,12 @@ inputs:
   dependencies:
     description: "A list of helm repositories required to verify dependencies in the format '<name>,<url>;<name>,<url>'"
     required: false
+  repo_url:
+    description: "The URL of the git repository"
+    required: false
+  ssh_private_key:
+    description: "SSH private key for ssh connection to the target repository"
+    required: false
 runs:
   using: 'docker'
   image: 'Dockerfile'
@@ -75,3 +81,5 @@ runs:
     - ${{ inputs.index_dir }}
     - ${{ inputs.enterprise_url }}
     - ${{ inputs.dependencies }}
+    - ${{ inputs.repo_url }}
+    - ${{ inputs.ssh_private_key }}
diff --git a/src/entrypoint.sh b/src/entrypoint.sh
old mode 100644
new mode 100755
index 3f189d3..c9eb5df
--- a/src/entrypoint.sh
+++ b/src/entrypoint.sh
@@ -1,19 +1,5 @@
 #!/usr/bin/env bash
 
-# Copyright 2020 Stefan Prodan. All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
 set -o errexit
 set -o pipefail
 
@@ -33,11 +19,11 @@ CHART_VERSION=${13}
 INDEX_DIR=${14}
 ENTERPRISE_URL=${15}
 DEPENDENCIES=${16}
+REPO_URL=${17}
+SSH_PRIVATE_KEY=${18}
 
 CHARTS=()
 CHARTS_TMP_DIR=$(mktemp -d)
-REPO_ROOT=$(git rev-parse --show-toplevel)
-REPO_URL=""
 
 main() {
   if [[ -z "$HELM_VERSION" ]]; then
@@ -170,6 +156,13 @@ upload() {
   tmpDir=$(mktemp -d)
   pushd $tmpDir >& /dev/null
 
+  if [ -n "$SSH_PRIVATE_KEY" ]; then
+    mkdir -p ~/.ssh
+    echo "$SSH_PRIVATE_KEY" > ~/.ssh/id_rsa
+    chmod 600 ~/.ssh/id_rsa
+    export GIT_SSH_COMMAND="ssh -v -i ~/.ssh/id_rsa -o StrictHostKeyChecking=no"
+  fi
+
   git clone ${REPO_URL}
   cd ${REPOSITORY}
   git config user.name "${COMMIT_USERNAME}"