Add: psql, mariadb, sqlite

.claude/settings.local.json

@@ -0,0 +1,10 @@
+{
+  "permissions": {
+    "allow": [
+      "WebFetch(domain:mariadb.com)",
+      "WebFetch(domain:downloads.mariadb.com)",
+      "WebFetch(domain:mariadb.org)",
+      "WebFetch(domain:legacy-downloads.mariadb.com)"
+    ]
+  }
+}

.devcontainer/example/devcontainer.json

@@ -35,6 +35,8 @@
     "source=${localEnv:HOME}/.kube,target=/home/vscode/.kube,type=bind,readonly",
     // SSH keys for Ansible and Git operations
     "source=${localEnv:HOME}/.ssh,target=/home/vscode/.ssh,type=bind,readonly",
+    // Allow writing to known_hosts so you can add new hosts 
+    "source=${localEnv:HOME}/.ssh/known_hosts,target=/home/vscode/.ssh/known_hosts,type=bind",
     // AWS credentials for the AWS CLI
     "source=${localEnv:HOME}/.aws,target=/home/vscode/.aws,type=bind,readonly"
   ],

.env.example

@@ -14,12 +14,13 @@
 #        -t devops-toolbox:local .
 #
 # VERSION REFERENCE:
-#   Terraform:  https://releases.hashicorp.com/terraform
-#   kubectl:    https://kubernetes.io/releases
-#   k9s:        https://github.com/derailed/k9s/releases
-#   .NET:       https://dotnet.microsoft.com/download/dotnet
-#   Ansible:    https://pypi.org/project/ansible
-#   Python:     https://www.python.org/downloads
+#   Terraform:   https://releases.hashicorp.com/terraform
+#   kubectl:     https://kubernetes.io/releases
+#   k9s:         https://github.com/derailed/k9s/releases
+#   .NET:        https://dotnet.microsoft.com/download/dotnet
+#   Ansible:     https://pypi.org/project/ansible
+#   Python:      https://www.python.org/downloads
+#   PostgreSQL:  https://www.postgresql.org/support/versioning/
 # =============================================================================
 
 # Cloud cli tools
@@ -42,6 +43,9 @@ STERN_VERSION=v1.33.1
 ANSIBLE_VERSION=13.5.0
 TERRAFORM_VERSION=1.14.8
 
+# Database clients
+POSTGRESQL_CLIENT_VERSION=18
+
 # Programming languages
 DOTNET_VERSION=10.0.201
 PYTHON_VERSION=3.12

Dockerfile

@@ -59,20 +59,49 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     yq \
     # Disk usage analysis
     ncdu \
+    # Database clients
+    # mariadb-client is installed here rather than via the MariaDB Foundation's
+    # APT repo (as other tools are) because MariaDB 12.x does not have a stable,
+    # version-addressable APT repository URL. The Ubuntu LTS package is used instead.
+    mariadb-client \
+    sqlite3 \
     # Python (explicit version from deadsnakes PPA for pinning control)
     python${PYTHON_VERSION} \
     python${PYTHON_VERSION}-venv \
     python3-pip \
     pipx \
     # Shell completion framework (required for kubectl/terraform completions)
     bash-completion \
-    && rm -rf /var/lib/apt/lists/* 
+    && rm -rf /var/lib/apt/lists/*
 
 # Ensure pipx binaries are on PATH for all subsequent RUN steps and terminals
 ENV PATH="/root/.local/bin:/home/vscode/.local/bin:${PATH}"
 ENV PIPX_HOME="/usr/local/pipx"
 ENV PIPX_BIN_DIR="/usr/local/bin"
 
+# -----------------------------------------------------------------------------
+# PostgreSQL Client
+# Installed via the PostgreSQL Global Development Group (PGDG) APT repository
+# for exact major-version pinning and access to current point releases.
+# Provides: psql, pg_dump, pg_restore, pg_dumpall.
+# Shell completions are shipped with the package and auto-loaded by
+# bash-completion — no explicit step required.
+# -----------------------------------------------------------------------------
+ARG POSTGRESQL_CLIENT_VERSION=18
+
+RUN curl -fsSL https://www.postgresql.org/media/keys/ACCC4CF8.asc \
+    -o /tmp/postgresql.asc \
+    && mkdir -p /etc/apt/keyrings \
+    && gpg --dearmor -o /etc/apt/keyrings/postgresql.gpg /tmp/postgresql.asc \
+    && rm /tmp/postgresql.asc \
+    && echo "deb [arch=${TARGETARCH} signed-by=/etc/apt/keyrings/postgresql.gpg] https://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" \
+      > /etc/apt/sources.list.d/postgresql.list \
+    && apt-get update \
+    && apt-get install -y --no-install-recommends \
+    postgresql-client-${POSTGRESQL_CLIENT_VERSION} \
+    && rm -f /etc/apt/sources.list.d/postgresql.list /etc/apt/keyrings/postgresql.gpg \
+    && rm -rf /var/lib/apt/lists/* \
+    && psql --version
 
 # -----------------------------------------------------------------------------
 # .NET SDK

README.md

@@ -29,6 +29,9 @@ with Docker and VS Code — no local setup required.
 | [gcloud CLI](https://cloud.google.com/sdk/gcloud) | See [Dockerfile](./Dockerfile) | Google Cloud resource management |
 | [GitHub CLI](https://cli.github.com) | See [Dockerfile](./Dockerfile) | GitHub workflow management |
 | [AWS CLI](https://aws.amazon.com/cli/) | See [Dockerfile](./Dockerfile) | AWS resource management |
+| [psql](https://www.postgresql.org/docs/current/app-psql.html) | See [Dockerfile](./Dockerfile) | PostgreSQL CLI client |
+| [mariadb / mysql](https://mariadb.org) | See [Dockerfile](./Dockerfile) | MariaDB and MySQL CLI client |
+| [sqlite3](https://sqlite.org) | See [Dockerfile](./Dockerfile) | SQLite CLI client |
 | [ipython](https://ipython.org) | See [dependencies/](./dependencies/) | Enhanced Python REPL |
 | [pytest](https://pytest.org) | See [dependencies/](./dependencies/) | Python testing |
 | [black](https://black.readthedocs.io) | See [dependencies/](./dependencies/) | Python code formatting |