Update docker configuration files

infra/README.md

@@ -87,11 +87,7 @@
 4. Install dependencies for Docker’s official repo
 
     ```bash
-    sudo apt install -y \
-        ca-certificates \
-        curl \
-        gnupg \
-        lsb-release
+    sudo apt install -y ca-certificates curl gnupg lsb-release
     ```
 
 5. Add Docker’s official APT repo.
@@ -99,15 +95,11 @@
     ```bash
     sudo install -m 0755 -d /etc/apt/keyrings
 
-    curl -fsSL https://download.docker.com/linux/ubuntu/gpg \
-        sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
+    curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
 
-    echo \
-        "deb [arch=$(dpkg --print-architecture) \
-        signed-by=/etc/apt/keyrings/docker.gpg] \
-        https://download.docker.com/linux/ubuntu \
-        $(lsb_release -cs) stable" \
-        sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
+    sudo chmod a+r /etc/apt/keyrings/docker.gpg
+
+    echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
 
     sudo apt update
     ```
@@ -115,12 +107,7 @@
 6. Install Docker Engine + compose plugin.
 
     ```bash
-    sudo apt install -y \
-        docker-ce \
-        docker-ce-cli \
-        containerd.io \
-        docker-buildx-plugin \
-        docker-compose-plugin
+    sudo apt install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
     ```
 
 7. Verify the installation.