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Fix Codex MCP Gateway connection by removing hardcoded IP #13792

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bc457c9
Fix Codex MCP Gateway connection by removing hardcoded IP
Mossaka Feb 4, 2026
1de56ee
Add changeset [skip-ci]
github-actions[bot] Feb 4, 2026
b8e02e4
Bump MCP Gateway to v0.0.99 (fixes OAuth discovery timeout)
Mossaka Feb 5, 2026
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5 changes: 5 additions & 0 deletions .changeset/patch-remove-codex-hardcoded-ip.md
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10 changes: 5 additions & 5 deletions .github/workflows/smoke-codex.lock.yml
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11 changes: 2 additions & 9 deletions actions/setup/sh/convert_gateway_config_codex.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -61,15 +61,8 @@ echo "Target domain: $MCP_GATEWAY_DOMAIN:$MCP_GATEWAY_PORT"
# Note: URLs must use the correct domain (host.docker.internal) for container access

# Build the correct URL prefix using the configured domain and port
# For host.docker.internal, resolve to the gateway IP to avoid DNS resolution issues in Rust
if [ "$MCP_GATEWAY_DOMAIN" = "host.docker.internal" ]; then
# AWF network gateway IP is always 172.30.0.1
RESOLVED_DOMAIN="172.30.0.1"
echo "Resolving host.docker.internal to gateway IP: $RESOLVED_DOMAIN"
else
RESOLVED_DOMAIN="$MCP_GATEWAY_DOMAIN"
fi
URL_PREFIX="http://${RESOLVED_DOMAIN}:${MCP_GATEWAY_PORT}"
# Use the domain directly (like Claude does) - Squid ACLs properly match domain names
URL_PREFIX="http://${MCP_GATEWAY_DOMAIN}:${MCP_GATEWAY_PORT}"

# Create the TOML configuration
cat > /tmp/gh-aw/mcp-config/config.toml << 'TOML_EOF'
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2 changes: 1 addition & 1 deletion pkg/constants/constants.go
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Expand Up @@ -278,7 +278,7 @@ const DefaultGitHubMCPServerVersion Version = "v0.30.3"
const DefaultFirewallVersion Version = "v0.13.4"

// DefaultMCPGatewayVersion is the default version of the MCP Gateway (gh-aw-mcpg) Docker image
const DefaultMCPGatewayVersion Version = "v0.0.98"
const DefaultMCPGatewayVersion Version = "v0.0.99"

// DefaultMCPGatewayContainer is the default container image for the MCP Gateway
const DefaultMCPGatewayContainer = "ghcr.io/github/gh-aw-mcpg"
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2 changes: 1 addition & 1 deletion pkg/constants/constants_test.go
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Expand Up @@ -286,7 +286,7 @@ func TestVersionConstants(t *testing.T) {
{"DefaultCopilotVersion", DefaultCopilotVersion, "0.0.402"},
{"DefaultCodexVersion", DefaultCodexVersion, "0.94.0"},
{"DefaultGitHubMCPServerVersion", DefaultGitHubMCPServerVersion, "v0.30.3"},
{"DefaultMCPGatewayVersion", DefaultMCPGatewayVersion, "v0.0.98"},
{"DefaultMCPGatewayVersion", DefaultMCPGatewayVersion, "v0.0.99"},
{"DefaultSandboxRuntimeVersion", DefaultSandboxRuntimeVersion, "0.0.34"},
{"DefaultFirewallVersion", DefaultFirewallVersion, "v0.13.4"},
{"DefaultPlaywrightMCPVersion", DefaultPlaywrightMCPVersion, "0.0.63"},
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1 change: 0 additions & 1 deletion pkg/workflow/domains.go
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Expand Up @@ -34,7 +34,6 @@ var CopilotDefaultDomains = []string{

// CodexDefaultDomains are the minimal default domains required for Codex CLI operation
var CodexDefaultDomains = []string{
"172.30.0.1", // AWF gateway IP - Codex resolves host.docker.internal to this IP for Rust DNS compatibility
"api.openai.com",
"host.docker.internal",
"openai.com",
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17 changes: 8 additions & 9 deletions pkg/workflow/domains_test.go
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Expand Up @@ -259,7 +259,6 @@ func TestCopilotDefaultDomains(t *testing.T) {
func TestCodexDefaultDomains(t *testing.T) {
// Verify that expected Codex domains are present
expectedDomains := []string{
"172.30.0.1", // AWF gateway IP - Codex resolves host.docker.internal to this IP
"api.openai.com",
"host.docker.internal",
"openai.com",
Expand Down Expand Up @@ -287,8 +286,8 @@ func TestGetCodexAllowedDomains(t *testing.T) {
t.Run("nil network permissions returns only defaults", func(t *testing.T) {
result := GetCodexAllowedDomains(nil)
// Should contain default Codex domains, sorted
if result != "172.30.0.1,api.openai.com,host.docker.internal,openai.com" {
t.Errorf("Expected '172.30.0.1,api.openai.com,host.docker.internal,openai.com', got %q", result)
if result != "api.openai.com,host.docker.internal,openai.com" {
t.Errorf("Expected 'api.openai.com,host.docker.internal,openai.com', got %q", result)
}
})

Expand All @@ -298,8 +297,8 @@ func TestGetCodexAllowedDomains(t *testing.T) {
}
result := GetCodexAllowedDomains(network)
// Should contain both default Codex domains and user-specified domain
if result != "172.30.0.1,api.openai.com,example.com,host.docker.internal,openai.com" {
t.Errorf("Expected '172.30.0.1,api.openai.com,example.com,host.docker.internal,openai.com', got %q", result)
if result != "api.openai.com,example.com,host.docker.internal,openai.com" {
t.Errorf("Expected 'api.openai.com,example.com,host.docker.internal,openai.com', got %q", result)
}
})

Expand All @@ -309,8 +308,8 @@ func TestGetCodexAllowedDomains(t *testing.T) {
}
result := GetCodexAllowedDomains(network)
// api.openai.com should not appear twice
if result != "172.30.0.1,api.openai.com,example.com,host.docker.internal,openai.com" {
t.Errorf("Expected '172.30.0.1,api.openai.com,example.com,host.docker.internal,openai.com', got %q", result)
if result != "api.openai.com,example.com,host.docker.internal,openai.com" {
t.Errorf("Expected 'api.openai.com,example.com,host.docker.internal,openai.com', got %q", result)
}
})

Expand All @@ -320,8 +319,8 @@ func TestGetCodexAllowedDomains(t *testing.T) {
}
result := GetCodexAllowedDomains(network)
// Empty allowed list should still return Codex defaults
if result != "172.30.0.1,api.openai.com,host.docker.internal,openai.com" {
t.Errorf("Expected '172.30.0.1,api.openai.com,host.docker.internal,openai.com', got %q", result)
if result != "api.openai.com,host.docker.internal,openai.com" {
t.Errorf("Expected 'api.openai.com,host.docker.internal,openai.com', got %q", result)
}
})
}
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